Industry
Cars
Fuel burning
Use of chlorofluorocarbons
Answer:
1.
Explanation:
A signal from one gland to another would not be intercellular, as "inter" means inside. This means intercellular would stand for "Inside the Cell"
Answer:
When a liquid is heated, the molecules gain energy. This means they move and vibrate more, causing them to escape in the atmosphere.
Species could compete for water, food, land, etc.
