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Chemistry-Atmosphere quiz

Description

What was the early atmosphere like? The Promordial soup theory. Fractional distillation of air. CO2 - effects on atmosphere if there is an increase.
murailuca
Quiz by murailuca, updated more than 1 year ago
murailuca
Created by murailuca over 8 years ago
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Resource summary

Question 1

Question
What was the Earth's surface originally like?
Answer
  • molten for many millions of years
  • it was cold with few gases present

Question 2

Question
Which statements are true?
Answer
  • Atmosphere was mostly CO2.
  • There was oxygen.
  • water vapour was present
  • there was a lot of methane and ammonia present
  • oceans formed when the ammonia condensed

Question 3

Question
Phase 2- [blank_start]Green plants[blank_end] evolved and produced [blank_start]oxygen.[blank_end] Green plants and algae evolved over most of the Earth. They were happy in the [blank_start]CO2[blank_end] atmosphere. Lot of the [blank_start]CO2[blank_end] dissolved into the oceans. Green plants and algae absorbed some of the CO2 by [blank_start]photosynthesis[blank_end]. Plants and algae died and were buried under layers of [blank_start]sediment[blank_end] along with skeletons and shells of [blank_start]marine organisms[blank_end] that had slowly evolced. The carbon hydrocarbons inside them became locked up in [blank_start]sedimentary rocks[blank_end] as [blank_start]insoluble carbonates[blank_end] and fossil fuels. When we burn fossil fuels today this locked up carbon is released and the concentration of CO2 in the atmosphere rises.
Answer
  • Green plants
  • oxygen
  • CO2
  • CO2
  • photosynthesis
  • sediment
  • marine organisms
  • sedimentary rocks
  • insoluble carbonates

Question 4

Question
Phase 3- Build up of [blank_start]oxygen[blank_end] in the atmosphere killed off some early organisms that could not tolerate it- but allowed other organisms to [blank_start]develop.[blank_end] The oxygen also created the ozone layer [blank_start](O3)[blank_end] which blocked harmful rays from the Sun. Enabled even more complex organisms to evolve. There is virtually no [blank_start]CO2[blank_end] left.
Answer
  • oxygen
  • carbon dioxide
  • nitrogen
  • develop.
  • grow
  • (O3)
  • (O2)
  • CO2
  • CO3
  • CO

Question 5

Question
Primordial soup theory- the Earths atmosphere was rich in nitrogen, hydrogen, ammonia and methane.
Answer
  • True
  • False

Question 6

Question
Lightening struck. This caused chemical reactions between the gases. Resulting in the formation of atoms.
Answer
  • True
  • False

Question 7

Question
The amino acids collected in a primordial soup- a body of [blank_start]water[blank_end] out of which life gradually crawded. Amino acids gradually combined to produce organic matter which eventually developed into [blank_start]simple[blank_end] living organisms.
Answer
  • CO2
  • water
  • amino acids
  • simple
  • complex

Question 8

Question
In the 1960s- Miller and Urey carried out an experiment to prove this theory. They sealed the gases in their apparatues, heated them and applied an electrical charge for a week. They found that amino acids were were made, as many as there is on Earth now.
Answer
  • True
  • False

Question 9

Question
The earths crust, oceans and atmosphere are an ultimate source of what?
Answer
  • carbon dioxide
  • amino acids
  • minerals and resources

Question 10

Question
Air is filtered to remove dust. It is then cooled to around -200 degrees and becomes a liquid- During cooling water vapour condenses and is removed. CO2 freezes and is removed. Liquidfied air enters fractionating coloumn and is heated slowly. Remaining gases are seperated by fractional distillation- oxygen and argon come out together so another coloumn is used to seperate them.
Answer
  • alongside this comes out ammonia
  • with this comes out argon
  • Air becomes a liquid
  • oxygen becomes a liquid

Question 11

Question
What does burning fossil fuels releases?
Answer
  • CO2
  • H2O

Question 12

Question
An increase in CO2 is causing global warming. ( a type of climate change)
Answer
  • True
  • False

Question 13

Question
Oceans are a natural store of CO2. they absorb it from the atmosphere. However the extra CO2 we are releasing is making them too acidic. This is bad news for coral and shellfish and also means that in the future they wont be able to absorb any more CO2.
Answer
  • True
  • False

Question 14

Question
What does the extra CO2 we release make acidic? What is this a bad news for?
Answer
  • Rain - buildings
  • Oceans- coral and shellfish
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