Question

1.What is in the atmosphere that makes Earth capable of supporting life?

a. There is both carbon dioxide and oxygen held in balance by photosynthesis and respiration.
b. Have a relatively stable temperature
c. Provides air that we breathe
d. All the choices

2. In which layer of the atmosphere can the ozone layer be found?
a. Stratosphere c. Troposphere
b. Mesosphere d. None of the choices

3.Which of the following can be found in thermosphere? a. Aurora borealis c. Clouds
b. Meteor d. Ozone layer


4. Which of the following is the best practice for humans to combat climate change?
a. Deforestation
b. Frequent use of non-renewable resources
c. Replace fossil fuels with other energy source
d. All of the choices

Answer 1

Answer:

1 d.

2 d.

3 d.

4 c

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Answer 2

Answer:

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