Answer:
cut down on fossil fuels and green house gasses
Explanation:
they are thickening the atmosphere so when the Suns rays enter earth they can't escape
China assisted north korea
I think the answer is A because it’s a desert
Answer:
It would throw off the balance between free and slave states.
Explanation:
Lead expeditions to make the area. Made transportation a lot easier by expanding railroads out west. Created roads for easier travel. Established courts and government buildings. Sent the armed forces to make sure everything was safe. The question is vague so I kind of have to give you a vague answer.
