C. The Rocky Mountains I believe, Mt. Elbert is in Colorado and the Rocky Mountains go through Colorado.
<span>1. Groundwater is the water source in the 3rd world countries. Access to drilling and pumping technologies can increase the standard of living for many villages in sub-Saharan africa.
2. Previous industrial activities have impacted groundwater sources to the point that some areas are not suitable for potable water use without extensive remediation efforts
3. Groundwater is an important source of drinking water and irrigation water in areas that are also home to natural gas production. </span>
It isn't exactly known who discovered it first, but the earliest claim of earth being round rather than flat was posed by Pythagoras sometime around 500 B.C. He argued that if the moon was round the Earth should be as well.
After that, his claim was proven true by a man named Anaxagoras at around 500-430 B.C when he brought up solar and lunar eclipses. The shape of Earth's shadow on the moon was also used as evidence that the Earth was round.
And finally, in 350 B.C the great Aristotle declared that the Earth was a sphere based on constellations you can see if you travel farther from the equator. Over the next hundred or so years, Aristarchus and Eratosthenes actually measured the size of the earth.
Short answer: The Greeks
Answer:
Explanation:
Alberta's oil sands were formed millions of years ago, as tiny marine creatures died and drifted to the sea floor and were covered by layers of sediment that exerted enough pressure and temperatures to transform the organic matter into oil. Over millions of years, that oil became trapped in thick layers of sand.
Answer:
The reason that logging is so bad for the climate is that when trees are felled they release the carbon they are storing into the atmosphere, where it mingles with greenhouse gases from other sources and contributes to global warming accordingly.
Explanation:
