Why does fossil fuel use in the united states make the u. s. vulnerable to the political wishes of foreign countries?
a.

the us is a net exporter of fossil fuels.
b.

fossil fuels lead to global climate change.
c.

the us imports much of its petroleum from foreign countries which set the prices.
d.

all of the above.

the correct answer is option "C".

Explanation:

United States is a country which is having a high usage of fossil fuels. They are not having resources for that. They import fossil fuel from gulf places, which is very far from United States. So, they need to depend on Middle East oil which makes America vulnerable. They need to accept the prices that the gulf provides them. It is the main reason which makes United States vulnerable.

an energy transformation flow diagram is shown

where is it ?

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete