Land forms can affect people by elevation, like a plateau, it's elevated an means colder, which means less species, which means humans lving there adapt, something like that.
The correct answer is - 45 percent.
Since the clock produces 45 useful unites energy units for every 100 unites of energy that it uses, than it turns out that the efficiency of the clock is 45 percent.
The answer is C A ball of dust, ice, and rock was pulled together by gravity.Oct 10, 2018
When a volcano erupts, the molten rock (or magma) that comes out of the Earth is called lava. Because lava is so hot (more than 1,100 degrees C, over 2,000 degrees F), it remains molten and flows across the ground until it cools and hardens into rock.
hope this helps
