|
|
|
1
|
type of car that gets about 46 miles per gallon
|
|
6
|
land created to feed millions
|
|
8
|
main purpose of second and third level activities is to change the ______________
|
|
9
|
created by dams to provide water for farms and cities
|
|
12
|
chemicals used to grow more crops
|
|
14
|
region in the US that once supported wild grasses and buffalo
|
|
16
|
a richness of different kinds of living things in a region
|
|
17
|
believe air pollution has caused climate change
|
|
|
|
|
|
|
2
|
agriculture, forestry, and fishing provide food and ________ that people need to live
|
|
3
|
companies that face the challenge of harvesting needed wood while limiting damage
|
|
4
|
waste, usually man-made, that makes the air, water, or soil less clean
|
|
5
|
key is to find a _________________
|
|
7
|
a loss of forest cover in a region
|
|
10
|
cars don't emit dangerous chemicals
|
|
11
|
a solution to cutting wild timber is to create _______ farms
|
|
13
|
reduces amounts of waste
|
|
15
|
interaction with raw materials
|
|
18
|
engineering for building structures that alter the landscape
|
|
|
|
