CONSERVE
CUT
RESOURCES
ON AVERAGE
CRUCIAL
STATISITCS
WASTE
REQUIRES
LEAK
HUGE
very, very large, big
makes it necessary for someone to do something
extremely important
uses too much of something, or uses it in a bad way
natural or man-made products that people need or can use
a hole or opening that allows water or gas to escape
usually, normally
use less of something or make something smaller
numbers that give information
save