B.the centerpoint formed by low pressure
<span>Factors contributing to the west ward expansion of the United States include the discovery of gold, the Homestead Act, and the desire for adventure, land and riches. The answers are the third, fourth and fifth statements among the choices that you have included or posted.</span>
Zero degrees<span> latitude is the line designating the </span>Equator<span> and divides the Earth into two equal hemispheres (north and south). </span>Zero degrees<span> longitude is an imaginary line known as the Prime Meridian. Therefore, we are looking for </span>what<span> exists at the</span>location<span> where the </span>Equator<span> and the Prime Meridian cross each othe</span>
Reduce use of fossil fuels in factories and other places as a source of energy and attempt to replace the use of fossil fuels with cleaner sources of energy like "Wind energy" and "Solar energy"
You're right that volcanoes are out. We can find each of the abovementioned landforms in the USA, but about 50% of them are plains. They're specific for central USA and southern coast.
Answer: 2
