Answer:
a. the amount of biologically productive land/sea area needed to support the lifestyle of humans
They erode the earth, carrying along minerals and soils. When they melt, they deposit these materials, creating other landforms.
Answer: The Appalachian Mountain range is many regions as it stretches from from Newfoundland and Labrador, Canada, in the north to Alabama, USA, in the south.
Explanation: It's a very long mountain range, so no wonder why it spans so far. For a specific region, I guess you could say the eastern coast of the continent of North America.
Answer:
d. 4 hydrogen nuclei fuse to make 1 helium nucleus
Explanation:
As we know that sun is the largest source of energy and it produce high amount energy by performing a fusion reaction in the core of the sun.This reaction us known as nuclear fusion.In fusion reaction 4 hydrogen nuclei fuse and produce 1 helium nucleus.
So the answer is d.
d. 4 hydrogen nuclei fuse to make 1 helium nucleus
