To protect an area or an animal to make sure it survives in the future.
conservation
A certain group of animals or plants that are similar.
species
A continuous sequence of events in life and the environment.
cycle
Make it possible for something to happen.
enable
To keep someone or something from being harmed.
protect
An area of land where wild animals are protected.
reserve
To take part in something.
involve
Suddenly understand something.
realize
Something that makes the air, water, or soil dirty.
pollution
An animal that may soon not exist in the wild.
endangered
Help by giving time or money.
support
To throw garbage on the ground instead of a garbage can.
litter
To gather together.
collect
Machines such as cars and buses.
vehicles
Giving to make something better.
contribute
When someone breaks the rules that are set by the government.
illegal