Question 1
Question
An environment consists of complex networks of interlinked systems.
Question 2
Question
What is a system?
Answer
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A bunch of different parts working together to accomplish different goals.
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A bunch of different parts working together to accomplish the same goal.
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One part working to accomplish many different goals.
Question 3
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Without a part, the system will still work properly.
Question 4
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System inputs _?
Answer
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Pull something out of the system.
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Put something into the system
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Take something away from the system
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Don't do anything to interact with the system
Question 5
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System outputs _?
Question 6
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A system output can serve as a input.
Question 7
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What are the types of feedback loops?
Answer
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Positive
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Electron
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Neutral
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Negative
Question 8
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In a negative feedback loop, the output acts as an input that moves the system, in a new direction.
Question 9
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Most systems do not use a negative feedback loop.
Question 10
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A negative feedback loop pushes towards _.
Answer
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equilibrium
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preservation
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combustion
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unsustainability
Question 11
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A positive feedback loop has the opposite effect of the negative feedback loop.
Question 12
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A positive feedback loop pushes towards _.
Answer
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combustion
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stable situations
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unstable situations
Question 13
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Positive feedback loops are rare in nature.
Question 14
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What is the lithosphere?
Question 15
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What is the atmosphere?
Question 16
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What is the hydrosphere?
Answer
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All land
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All water
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Everything but water
Question 17
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What is the biosphere?
Answer
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Total of all the planet's biotic and abiotic components.
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Total of all the planet's biotic components
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Total of all the planet's abiotic components
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Total of all the planet's water
Question 18
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Eutrophication is the process of nutrient over-enrichment.
Question 19
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Chemistry does not play a central role in many environmental challenges.
Question 20
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All material that has mass and occupies space is matter.
Question 21
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Laws of Conservation of Matter
Question 22
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An element is _.
Question 23
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An element cannot be broken down into any other substances with other properties.
Question 24
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Each element is composed of
Answer
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atoms
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three neutrons
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element
Question 25
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An atom is the smallest component that maintains the chemical properties of the element.
Question 26
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Each atom has a nucleus with
Answer
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protons
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neutrons
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electrons
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proteins
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chemicals
Question 27
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An element will always have the same number of
Answer
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protons
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neutrons
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electrons
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nuclei
Question 28
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An element can have different numbers of neutrons or electrons.
Question 29
Question 30
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Ions are positively charged.
Question 31
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Ions are atoms that can gain or lose
Answer
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protons
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nuclei
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neutrons
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electrons
Question 32
Answer
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measures oxygen
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measures hydrogen
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measures carbon
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measures nitrogen
Question 33
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Hydrogen ions and whether they are acidic or basic is
Answer
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counted on a balance
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measured on a pH scale
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measured on a pH ruler
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oberserved
Question 34
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Molecules are _.
Answer
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the combination of two or more atoms
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the combination of two atoms
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the combination of four of the same atoms
Question 35
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Molecules composed of two or more different elemets are called compounds.
Question 36
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Organic compounds are
Answer
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Carbon atoms bonded to hydrogen atoms
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Hydrogen atoms bonded to hydrogen atoms
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Carbon atoms bonded to carbon atoms
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Nitrogen atoms bonded to carbon atoms
Question 37
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Polymers are long chains of repeated molecules.
Question 38
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Hydrocarbons are
Answer
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compounds of hydrogen and carbon
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compounds of hydrogen and nitrogen
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compounds of carbon and nitrogen
Question 39
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Macromolecules are
Answer
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Large molecules
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Small molecules
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Medium molcules
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Microscopic molecules
Question 40
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What are three essential macromolecules?
Answer
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Carbohydrates
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Nucleic acids
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Lipids
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Proteins
Question 41
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Proteins are made up of chains of amino acids.
Question 42
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Amino acids do not determine the identity of proteins.
Question 43
Question 44
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Amino acids are the building blocks of life.
Question 45
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Nucleic acid direct protein production.
Question 46
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Nucleic acid carries
Answer
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protein information
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genetic information
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mental information
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carbohydrate information
Question 47
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What are the two types of nucleic acid?
Question 48
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Carbohydrates are
Answer
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simple sugars
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complex sugars
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simple proteins
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nucleic acids
Question 49
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What are the two major types of energy?
Answer
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Combustion energy
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Potential energy
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Wind energy
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Kinetic energy
Question 50
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Potential energy is the energy of
Answer
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position
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chemicals
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atoms
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motion
Question 51
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Kinetic energy is the energy of
Answer
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poisition
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chemicals
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wind
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motion
Question 52
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Chemical energy is potential energy in the bonds of atoms.
Question 53
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Why is it important to have energy?
Answer
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To do anything
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To run
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To do nothing
Question 54
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In the First Law of Thermodynamics, energy cannot be created or destroyed, but can change forms.
Question 55
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In the Second Law of Thermodynamics,
Question 56
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The Earth's energy comes from the moon.
Question 57
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Autotrophs are also know as consumers.
Question 58
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Autotrophs are known as producers.
Question 59
Answer
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Use the sun's energy to produce their own food
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Use the sun's energy to decompose
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Do not use the sun's energy to produce their own food
Question 60
Answer
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turn chemical energy into light energy
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turn light energy into chemical energy
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turn light energy into soil
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turn chemical energy into wind energy
Question 61
Question
In photosynthesis, carbon dioxide and water are converted into sugars.
Question 62
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The components of photosynthesis are
Answer
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Carbon dioxide
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Water
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Shade
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Sunlight
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Soil
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Sugar
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Nitrogen
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Oxygen
Question 63
Question
Heterotrophs can produce their own food.
Question 64
Question
What are the components of cellular respiration?
Answer
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Water
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Energy
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Carbon dioxide
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Sunlight
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Sugar
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Oxygen
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Monoxide
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CO2
Question 65
Question
Energy is kept as heat in a one-way flow through the system.
Question 66
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An ecosystem is all of the organisms and non-living entities in a particular area at the same time
Question 67
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Primary production is the
Answer
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conversion of solar energy to sugars
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conversion of sugars to solar energy
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conversion or water to gas
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conversion of solar energy to wind energy
Question 68
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Gross primary production is the
Answer
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use of energy made by the heterotrophs themselves
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use of energy made by the plants themselves
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use of atoms made by the plants themselves
Question 69
Question
Net primary production is energy left over to put into biomass.
Question 70
Question
All ecosystems produce biomass at the same rate.
Question 71
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Elements and compounds are consumed and required for survival of organisms.
Question 72
Answer
-
7 protons, 7 neutrons
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4 protons, 7 neutrons
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4 protons, 4 neutrons
Question 73
Answer
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7 protons, 7 neutrons
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15 protons, 15 neutrons
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17 protons, 17 neutrons
Question 74
Answer
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7 protons, 7 neutrons
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7 protons, 8 neutrons
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8 protons, 8 neutrons
Question 75
Answer
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7 protons, 6 neutrons
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6 protons, 6 neutrons
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6 protons, 7 neutrons
Question 76
Question
Carbon dioxide is a colorless gad used by plants for photosynthesis, given off by repiration, and released by burning fossil fuels.
Question 77
Answer
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chemical bonds formed by the attraction between positively charged ions.
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chemical bonds formed by the attraction between oppositely charged ions.
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chemical bonds formed by the attraction between negatively charged ions.
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chemical bonds formed by the attraction between neutrally charged ions.
Question 78
Question
A watershed is the entire area of a river from when a pipe drains into an ocean.
Question 79
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Hypoxia is the condition of extremely low dissolved oxygen concentrations in a body of water.
Question 80
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A covalent bond is a chemical bond formed by atoms "sharing" electrons.
Question 81
Question
What is a solution?
Answer
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A mixture of substances in which elements, molecules, or compounds come together without chemically bonding.
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A mixture of substances in which elements, molecules, or compounds come together with an ionic bond.
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Plasma
Question 82
Question
Methane is a colorless gas produced primarily by anaerobic decomposition.
Question 83
Answer
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is a molecule consisting of three oxygen atoms
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absorbs ultraviolet radiation in the atmosphere
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absorbs ultraviolet radiation in the stratosphere
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is a molecule consisting of four oxygen atoms
Question 84
Question
What happens in biogeochemical cycles?
Answer
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Nutrients cycle through the stratosphere, hydrosphere, and lithosphere.
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Chemicals cycle through the atmosphere, hydrosphere, and lithosphere.
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Nutrients cycle through the atmosphere, hydrosphere, and lithosphere.
Question 85
Question 86
Question
A source is a reservoir that releases more nutrients than they accept
Question 87
Question
In a sink, the reservoir accepts more than it releases.
Question 88
Question
What are the three forms of the hydrolytic cycle?
Question 89
Question
Water gets into the atmosphere only by evaporation.
Question 90
Question
What is transpiration?
Answer
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Evaporation from plants
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Evaporation from snow
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Evaporation in general
Question 91
Question
Runoff is water flowing over land.
Question 92
Question
Human have only impacted some aspects of the water cycle.
Question 93
Question
How have we impacted the water cycle?
Answer
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Overfilled water sources
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Decreased evaporation
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Depleted water sources
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Reduced transpiration
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Increased transpiration
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Increased evaporation
Question 94
Question
Carbon is a part of every living thing.
Question 95
Question
Producers pull _ from the atmosphere.
Question 96
Question
Producers put some CO2 back into the atmosphere.
Question 97
Question
CO2 becomes incorporated into the tissues of _ and _.
Answer
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plants, air
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plants, insects
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animals,insects
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plants,animals
Question 98
Question
Settles into _ when organisms die.
Question 99
Question
What is the largest reservoir of carbon?
Question 100
Question
Putting too much CO2 into the air is a major climate change argument.
Question 101
Question
Shifted from _ to atmosphere.
Answer
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hydrosphere
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lithosphere
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stratosphere
Question 102
Question
Nitrogen makes up how much of our atmosphere?
Question 103
Question
Nitrogen is essential.
Question 104
Question
Nitrogen needs what to help itself cycle.
Answer
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Bacteria
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Thunder
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Lightning
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Atoms
Question 105
Question
How many steps are in the nitrogen cycle?
Question 106
Question
Nitrogen has to be "fixed" before it can be used.
Question 107
Question
Through what step of the nitrogen cycle do plants take up nitrates?
Answer
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Deneitrification
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Nitrification
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Nitrogen fixation
Question 108
Question
How have humans impacted the nitrogen cycle?
Question 109
Question
Phosphorus is found in the atmosphere.
Question 110
Question
The majority of phosphorus is found in
Answer
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rocks
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plants
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animals
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water
Question 111
Question
When rocks are weather, the phosphorus runs into the water and
Question 112
Question
Plants do not take up phosphorus.
Question 113
Question
How have humans impacted the phosphorus cycle?