Sol commonly known as the sun
All energy originates some where from the sun. This energy is later used for photosynthesis which is a chemical digestion for plant cells
C. Mice to cats because cats eat mice
The correct answer is Humidity
Humidity is the amount of water vapor in the air. These places are usually difficult to be in if you're unaccustomed as the locals are because the heat because of the water vapor is dreadful. For example, Japan has high humidity which makes it extremely hot, while Egypt has lower humidity in many places and although the temperature his higher, it is more bearable than some parts of Japan.
