Earth's Resources
Air, water, and plants are what type of resource
Renewable Resources
Agriculture is also known as what
Farming
The removal of all trees in an area is called what
deforestation
The careful use and protection of natural resources is called
conservation
Gasoline, coal, and natural gases are examples of
nonrenewable energy resources
Coal, oil, and natural gas are what type of resource
Nonrenewable resource
Soil that is exposed to wind and rain can cause what
Erosion
Plants growing in an area is called
vegetation
Recycling is when you
use materials again
wind energy, solar energy, and hydroelectric energy are examples of
renewable energy resources
What resource do people need to breathe?
Air
Building roads, cities, factories, and airports require large amounts of what
Land
Most of the praires and grasslands in America have been converted to cropland because the soil is
fertile
When companies cut down trees for lumber, what do they do to replace them?
Plant new trees
Burning nonrenewable energy resources also produces what type of pollution
air
What can be replanted every year?
Crops
Detergents, household wastes, fertilizers and trash are all ___________ that flow into our lakes, streams, and oceans through runoff.
pollutants
air pollution
One way to lower air pollution is by using
public transportation
Solar energy is energy from the
sun
Millions of years ago. coal formed slowly from what?
Plants
Human-Made trash
Since ancient times, farmers have removed water from rivers and streams to _____________ their crops.
irrigate
What is a vertical forest?
tall building where trees and plants are grown
Energy that comes from running water is called what
hydroelectric energy