Vocabulary 1
How much of something
amount
make a person do what you want
control
What a person or animal does
behavior
interact
Something that gets smaller in amount, size, or number
decrease
How you act when something happens
react
The amount of something you have
supply
When something you buy is hard to find
scarce
Things that are even
balance
What happens when nature is not in balance?
Animals and people run out of food... resources for survival are scarce.