General Science Review 7.1: Question Preview (ID: 12277)


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What describes the condition of air at a particular time and place?
a) weather b) atmosphere c) gasses d) particles
Earth's atmosphere is
a) thin b) thick c) thicker at the bottom and thinner at the top d) thinner at the bottom and thicker at the top
What 2 molecules are usually found in groups of 2 atoms?
a) Nitrogen and Oxygen b) Nitrogen and Carbon c) Carbon and Oxygen d) none of the choices
What percentage of Earth's atmosphere is nitrogen and oxygen?
a) 99% b) 1% c) 78% d) 21%
What is ozone?
a) A molecule made of 1 oxygen atom b) A molecule made of 2 oxygen atoms c) A molecule made of 3 oxygen atoms d) A molecule made of 4 oxygen atoms
What gas is released when fuels are burned?
a) Carbon dioxide b) Oxygen c) Nitogen d) Water vapor
Other gasses in the atmosphere are called _______ gasses because they are only found in small amounts
a) trace b) small c) rare d) fine
What state of matter is water vapor?
a) gas b) liquid c) solid d) 2 of the choices
Pure air contains
a) only gasses b) gasses and liquid particles c) gasses and solid particles d) gasses, liquid particles, and solid particles
Living things use atmosphere to
a) protect themselves from radiation and meteoroids b) trap warm energy c) to breathe d) all of the choices
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