There was alot of competion ... the soviet union actually ended up dropping out of the cold war because america had out spent them...they were trying to see how much better each other was in technological advances
The Answer is Trustee. Hope this Helped!
Human Environmental Interactions (H.E.I.) is just the ways humans interact with social ecosystems and the environment (everyday life)
Not quite sure but I think it is B.
Hope that helps.