Answer:
is a and for the second c
I think you answer would be
Because nitrogen oxides are created in the process of burning coal and other fossil fuels, some power plants are changing the way they burn coal. A great way to reduce acid rain<span> is to produce energy without using fossil fuels. ... Renewable energy sources help reduce </span>acid rain<span> because they produce much less pollution.
</span>
I hope I helped
I think 1 is a full sentence, but I'm not too sure.
2 is a fragment, you can write something like "tom stepped from the boat after a rugged trip across the Atlantic"
3 is a full sentence, 4 is a fragment but I don't know really how to rewrite it.
5 is also a fragment and you could write something like "the cars hood, hot from the sun's ray burned to touch"