ok Flashcards
A temperature _____ is when the atmospheric temperature increase in the lower part of the troposphere, which causes pollutants to be trapped near the surface, thus, creating smog.
inversion
The Clean Air Act that was passed in 1970, and strengthened in 1990, gives the _______ authority to regulate the amount of vehicle emissions in the US.
Environmental Protection Agency (EPA)
acid rain meter
7 and below acid 5.6 and below acid RAIN
__________ agriculture is the harvesting of enough crops to meet a family’s immediate needs.
sustinance
When animals can feely roam around and eat within a certain area (for the purpose of growing and becoming food later), the area in which they may roam is known as a ____pasture____.
pasture
Small areas where large numbers of livestock are raised together are known as _________.
Feedlot
Grass-covered land that animals can graze freely on is known as ____.
rangeland
The process of churning the soil for aeration purposes is known as _______.
tilling
Layers of soil are also known as _______.
_horizons
_____ farming involves planting crops around the contours of the land, preventing runoff.
contour
The widespread starvation caused by a shortage of food is known as ________.
famine
Rows of trees planted to help prevent wind erosion are known as ______.
shelterbelts
When not eating enough food to stay healthy, you are suffering from ______.
malnutrition
Explain what the Green Revolution was below.
major increase in crop yields through the use of machines, chemicals, genetic engineering, etc…
The side of a mountain that does not receive a large amount of rainfall is the ___.
leeward side
Natural gas is found near ___________.
other fossil fuels
Natural gas burns cleaner than _________.
other fossil fuels
Nuclear fusion takes place by: ___
Nuclear fusion takes place by: ___2 atoms come together under high heat and pressure to make a new atom – releases a large amount of energy
Nuclear fission releases a tremendous amount of energy and more _____, which in turn collide with more _____________.
______ energy is energy from sources that are constantly being formed.
neutrons, atoms, renewable
The percentage of energy put into a system that does useful work is known as ____________.
energy efficiency
When bacteria decompose organic wastes, one by-product is ________, which can be burned to generate heat and electricity.
methane
In the U.S. the average person disposes of roughly _______ of waste each day.
4 pounds
Solid waste in the U.S. has doubled since the ______.
_1960s
Of all the waste, roughly _____% is considered hazardous.
10-15
