Direction. Read and analyze each questions and encircle the letter of the correct answer

1. This layer starts above the troposphere and ends about 31 miles (50km) above ground.

A. Exosphere
C. Stratosphere
B. Mesosphere
D. Thermosphere

2. It heats the atmosphere while also absorbing harmful radiation from the sun.

A Methane
C. Oxygen
B. Nitrogen
D. Ozone

3. This layer extends from about 56 miles (90 km) to between 310 and 620 miles (500 and 1,000 km).
A. Exosphere
C. Stratosphere
B. Mesosphere
D. Thermosphere

4. The outermost layer of the atmosphere
A Exosphere
C. Stratosphere
B. Mesosphere
D. Thermosphere

5. The blanket of gases not only contains the air that we breathe but also protects us from the blasts of heat and
radiation emanating from the sun

A Atmosphere
C. Mesosphere
B. Exosphere
D. Troposphere​