 | Term | Definition |
| |
desalinization |
the process in which salt is taken out of seawater |
| |
terraces |
Horizontal ridges built into the slopes of steephillsides to prevent soil loss and aid farming |
| |
hydroelectric power |
A renewable energy resource produced from dams that harness the energy of falling water to power generators |
| |
aqueducts |
artificial channels for carrying water |
| |
fossil fuels |
formed from the remains of ancient plants and animals |
| |
refineries |
factories where crude oil is processed or refined |
| |
desertification |
the long term process of losing soil fertility and plant life |
| |
geothermal energy |
can also be used to generate energy |
| |
crop rotation |
a system of growing different crops on the same land over a period of years |
| |
aquifers |
are waterbearing layers of rock, sand or gravel |
| |
coal, petroleum, and natural gases |
name three fossil fuels |
| |
petroleum |
is an oily liquid that is pumped from the ground |
| |
metallic and nonmetallic |
two types of minerals |
| |
inorganic, occur naturally, solids in crystalline form, and definite chemical composition or combination of elements |
four properties of minerals |
| |
nonrenewable resources |
energy fuels and minerals are examples of |
| |
a slow increase in earths temperature |
what is global warming |
| |
shiny, conduct heat and electricity |
characteristics of metallic minerals |
| |
replanting |
what is reforestation |
| |
acid rain, smog, global warming |
results of air pollution |
| |
hydroelectric, wind, geothermal, solar, and nuclear |
main renewable energy resources |
| |
semi-arid |
regions receive only a small amount of rain |
| |
when air pollution combines with moisture in the air |
how is acid rain created |
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