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The atmosphere is composed of several gases. The gas which is present in the largest quantity is:
A. Carbon dioxide
B. Nitrogen
C. Oxygen
D. Water vapor

2. This gas is found in small quantities in the lower layers of The stratosphere. This gas is extremely important because it absorbs ultraviolet radiation.
A. Argon
B. Carbon dioxide
C. Nitrogen
D. Ozone

3. Water evaporates off lakes. Winds blow across the planet. Where does the energy come from for these and other weather processes?
A. Heat from the earths core
B. Dollar energy
C. Cold currents in the ocean
D. Rising cool air creating cold
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PLEASE HELP TIMED UNIT TEST I ONLY HAVE 51 MINUTES LEFT WITH 38 QUESTIONS

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1. B. Nitrogen is the greatest component of the gases in Earth's atmosphere

2. D. Ozone absorbs ultraviolet radiation

3. I would guess A. heat from the Earth's core but I'm not completely sure

Answer 1: Option(B) Nitrogen

Explanation:

The earth's atmosphere comprises of different gases which are Nitrogen(78%), plenty of Oxygen(21%), argon(0.9%) and remaining are the methane, gaseous oxides etc. So Nitrogen is present in largest quantity in the earth's atmosphere.

Answer 2: Option(D) Ozone

Explanation:

The Stratosphere is the second lowest layer of the earth. It contains the ozone which absorbs the UV rays coming form the sun because of which there is a rise in temperature than other layers.

Answer 3: Option(A) Heat from the earths core

Explanation:

The heat energy coming from the Sun heats the earth non-uniformly that results in the hot and cold area on the earth causes low and high air pressure.The Sun heats the earth core. When there is a hot weather the land near the sea becomes hot in comparison with the sea results in the hot wind flow from the sea.