11.
the inhabitants of easter island overused their resources, and

they moved onto house boats in the pacific ocean.

they adapted to using more aquatic resources.

their population crashed.

they moved to another island.
12.
when a body of water is lacking in oxygen, it is called a

carbon dioxide zone

dead zone

fishing zone

hot zone
13.
all green buildings are:

made from recycled materials

use solar energy

energy efficient

painted green