B and for the last part it is c
Me and my family help to reduce pollution by riding our bikes instead of taking our car. We also help preserve natural resources by taking shorter showers and not wasting water. (This is a simple answer and you can add on to it)
Answer:
Andrew died last week. He <u><em>had suffered</em></u> from cancer for some time. (Suffer)
I <u><em>had seen it </em></u>many times before, but it never failed to impress me. (see)
<u><em>They have fought</em></u> since the president was overthrown. (fight)
<u><em>I have known </em></u>Megan since we were at school together. (know)
<u><em>I was thinking </em></u>about buying new carpets, and last weekend we finally went out.
The opposing sides in the war <u><em>had fought.</em></u>
For years, we <u><em>had talked</em></u> and ordered some. (talk)
My car was once again in the garage for repairs. This was the third time <u><em>it had broken down </em></u>since I got it. (Break down)
Before now, we <u><em>always agreed</em></u> on where to go on holiday. (Always agree)
Explanation:
Hope this is what you're looking for?
The author describes what potential energy is and explains how roller coasters use potential energy as they rise to the top of the hill. She then explains kinetic energy, what it is, and how a roller coaster is using it when it comes down the hill. Later, Kibler described how the coaster will run out of kinetic energy. Even without brakes, she says, friction would cause it to eventually come to a stop. This all supports Kibler's argument that science can be learned from amusement park rides.
