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It is important for the United States to build canals (wide canals) because the country is visited multiple times by hurricanes annually. Hurricanes are accompanied by heavy rainfalls and if left unchecked, causes flooding. The function of canals is to diffuse accumulated rainwater and direct it to greater bodies of water.
Answer: As altitude increases, atmospheric pressure decreases
Explanation:
Atmospheric pressure 
is defined as the force 
per unit area 
the air that forms the atmosphere exerts on the Earth's surface:
It should be noted that as the altitude increases less air is above and, therefore the air weights less. This is because the atmosphere losses density as we ascend, causing less air.
However, it is important to point out this decrease in pressure is not linear, since at the beginning (in the first kilometers above sea level) it reduces more rapidly than in the next kilometers above. That is why this relationship between atmospheric pressure and altitude is exponential.
Answer:
Changes in solar energy
Explanation:
When released into the atmosphere, certain gases act like a blanket, preventing heat from escaping. One of the most important heat-trapping gases is carbon dioxide (CO2), which is released when we burn fossil fuels like oil, coal, and natural gas.
Once released, carbon dioxide stays in the atmosphere for roughly 40 years, though its effects stay much longer; other gases, like methane, are even longer-lived. The cumulative effect is to raise the planet’s temperature.
Political system of collective ownership of property; population is of one class.
Communist Manifesto
Book by Marx urging workers to overthrow upper classes; textbook for communism and socialism.
Dissenter
One who disagrees or has a difference of opinion
Free Enterprise System
Political system in which the government allows citizens to own private businesses for profit.
Humanistic
Secular rather than godly; promoted during the Renaissance; putting more emphasis on mans will.
Of Reformation in England
John Milton's writing on the preference of a commonwealth over a monarchy.
Principles
A basic rule of standard.
Renaissance
A revival of art and learing arising between the 14th and 16th centuries.
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