Answer:
harmful effects
1. that will cause air pollution
2. that will destroy our earth
Answer:
(C) Only if it starts moving
Explanation:
We know that work done is given by

So there are two case in which work done is zero
First case is that when force and displacement are perpendicular to each other
And other case is that when there is no displacement
So for work to be done there must have displacement, if there is no displacement then there is no work done
So option (c) will be the correct option
Answer:
It is important because it carries useful energy through your house that you can use for a variety of tasks.
Explanation:
Hope this helped !
Guess I recommend doing that
Answer: Not 100% sure but I believe the answer is B.
Hope this helps! ^^