Answer:
A.
Explanation: I saw it online it is gas particles are in constant motion. I hope it is right
Answer:
Preserving natural resources such as farmland, parks, open spaces and unused land is one way to reduce urban sprawl. Preserving the land keeps it as is. Thus, wildlife and animals aren't removed from their homes and forced closer to cities and suburbs
The answer to this question is 2 and 3
You need to use Stoichiometry