Water naturally changes between liquid, vapor, and ice as it moves around the world.
T
F
Less than half of the people on Earth experience extreme water scarcity for at least one month a year.
F
T
to get and keep things of one type such as stamps or coins as a hobby
to collect
to need or demand something
require
The planet will run out of water completely.
F
T
a useful or valuable possession or quality of a country, organization, or person
resource
the possibility of something bad happening
a risk
enough
adequate
to do something or deal with something successfully
to manage
We need new cultivation techniques that grow food using less water.
T
F
to provide things that people want or need
supply
The main factors in how much rain a region has are climate and geography.
F
T
a collection or mass, especially of something that cannot be counted
amount
Only 3% of the clean water on Earth available as drinking water to humans.
T
F
important or noticeable
significant
(especially of liquids, gases, or electricity) to move in one direction, especially continuously and easily
flows
97% of the water on Earth is saltwater.
T
F
If you look at Earth from space, you see much more water than land.
T
F