Author Question: The main drawback of coal as an energy resource is A) its contribution to the global warming. ... (Read 98 times)

nevelica · **on:** Jul 29, 2018

The main drawback of coal as an energy resource is

A) its contribution to the global warming.
B) its contribution to the ozone problem.
C) limited resources are available.
D) its contribution to acid rain.
E) the economics associated with the coal industry.

Question 2

When you push an object a certain distance while applying twice the force, you do

A) twice as much work.
B) four times as much work.
C) the same amount of work.