Unit 1
improve
to make better
a long time of dry weather
drought
depend
to need something or someone for support
to have a lot of something
plenty
shelves
identify
to tell what it is
to be good or happy
positive
root
part of the plant that grows under the soil
the reason for doing something
purpose
plant
plants
volunteer
helping people for no money
things you can use to find information. They can help us.
resources
diversity
a lot of different people and things
a prize for doing something
reward
beach
beaches
offer
saying you would like to help someone
how much of something you have
amount
organism
a living thing
another choice
alternative
party
parties
difference
to make something better
to find out what is the same and different between two or more things
compare
environment
the place where you live
how you do something
method
shoe
shoes