Which statements represent convection? Select two options.

2: The movement of air in a hot-air balloon makes it rise into the sky.

5: A house has high heating bills because the heat ends up in the attic.

Explanation:

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.