True or false about the Earth system

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Snow and ice reflect most of the sunlight on them.

2. Statement is true

   No

   Statement

   The air is mostly carbon dioxide.

3. Statement is true

   Yes

   Statement

   The ozone layer absorbs harmful UV radiation.

4. Statement is true

   No

   Statement

   A change in one sphere leaves the others untouched.

5. Statement is true

   Yes

   Statement

   Ocean currents carry heat from the equator poleward.

Instructions

Decide whether each statement is true or false.

Explanation