7th Gr. Science Unit 5 Flash Cards

Pregunta	Respuesta
The major source of pollution	automobile
The changing of gas to liquid	condensation
carbon dioxide and water vapor trapping heat given off by earth	greenhouse effect
the changing of liquid to gas	evaporation
layer responsible for reflecting radio waves	ionosphere
the most abundant gas in the atmosphere	nitrogen
the second most abundant gas in the atmosphere	oxygen
layer absorbing ultraviolet rays	ozonosphere
waste substances found in the atmosphere that are harmful to life	pollution
the layer in which weather changes occur	troposhpere
Most pollutants found in the atmosphere enter the body through the ________	lungs
Sulfur oxides harm the body by _______	damaging the lungs
The main factor varying from layer to layer in the atmosphere is the _________	temperature
The gas that is necessary for respiration in all living things is __________	oxygen
In order for plants to carry out photosynthesis, they must have __________	carbon dioxide
The probable reason for the increase of carbon dioxide is _________	burning fossil fuels
Snow or rain falling from clouds is called ___________	precipitation
The 2 processes of life involved in the carbon-oxygen cycle are _____________	photosynthesis and respiration
The amount of carbon dioxide in the atmosphere is controlled by an exchange with __________	the oceans
Plants and bacteria are necessary to complete the _________	nitrogen cycle
The process by which bacteria change nitrogen into nitrogen compounds is ________	fixation
The 2 types of air pollutants are ________	particles and gases
The process by which certain bacteria release nitrogen from nitrogen compounds is known as __________	denitrification
The amount of radiation absorbed by the earth _________ the radiation lost to space	equals
The rate at which oxygen is taken from the atmosphere by living things is equal to the rate at which it is replaced by ____________	plants or photosynthesis
Carbon monoxide interferes with the transportation of ________ by the blood	oxygen
In Genesis 1:26 God gave man the responsibility to have _________ over the earth	dominion
Matthew 7:12, "Therefore all things whatsoever ye would that men should do to you, do ye even so to them," is sometimes called the __________	golden rule
True/False? Bacteria are the root of the pollution problem	False
True/False? As "King" of the earth, man's responsibility is to protect the earth and develop its resources.	True
True/False? Of the incoming solar radiation 70 percent is used to heat the earth and its atmosphere	True

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7th Gr. Science Unit 5 Flash Cards

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