Created by e2020 The graph above shows the consumption of fossil fuels around the world and in the US since 1960. US
consumption decreased from 1970 to 2009, while the world average consumption remained approximately even
from 1970 to 2009.
Why did US consumption decrease?
A) The US population dropped between 1970 and 2009.
B) The US population became aware of the fossil-fuel dependency and have reduced their
consumption.
C)The US is running out of fossil fuels, and fossil fuels are too expensive to purchase from
foreign sources.
D)none of the above

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?

The energy available as a result of the motion of a body is called energy. -potential -gravitational -kinetic -chemical

On a recent expedition to a remote region of northern canada, scientists uncovered skeletal remains from about 100,000 years ago. surprisingly, all the skeletal remains, which included many species from differing biological families and spanned about two thousand years, showed evidence of experiencing temperatures in excess of 1000 degrees fahrenheit (or 538 degrees celsius). which of the following, if true, best explains the apparent paradox between the cold environment and the evidence of the bones experiencing hot temperatures? (a) chemical changes that naturally occur during the process of decay in only one north canadian species produce the same evidence of the species' skeletons being exposed to hot temperatures as the expedition scientists found. (b) a little over 103,000 years ago, a large fire is known to have occurred in northern canada. (c) strong evidence exists that as early as 70,000 years ago, homo sapiens around the world relied heavily on fire to cook animals. (d) in the same expedition and in roughly the same layer of excavation, scientists found rudimentary wood cutting and hunting tools used by early humans.