Solar energy ....................
Explanation:
Total number of buses =9178181
Since the velocity is constant, using Newton's First and Third Laws we know that the Friction and the Force are equal. So the friction is -12 Newtons.
Now the Normal Force (N) is also equal to the weight since the body is at a perfect balance.
So Weight is m*g = 25*10 = 250N
So N=250N
Answer: crude oil, natural gas, coal, and uranium. These are all resources that are processed into products that can be used commercially.
hope this helps
