something we don't need or cannot use
waste
something is used up, there is no more
run out
a change in the typical weather in an area
climate change
everything and everyone that is around us
environment
something that has no form and takes the shape of the container
liquid
an important part of something
essential element
when liquid water changes into gas
evaporate
huge, thick masses of ice
glaciers
happens when the environment is contaminated, or dirtied, by waste, chemicals, and other harmful substances
pollution
made of metals and rocky materials
asteroid
a period when the amount of rain or snow is below normal for an area
drought
a tank for the storage of water
cistern
worth a lot, needed and important for someone
valuable
plants that grow under the sea or ocean
marine plants
stuck somewhere
trapped
farming
agriculture