Answer:
<em>The sentences </em>A: <em> While she was studying, her dog began to lick her elbow. </em>and<em> </em>D:<em> Without a doubt, she was the fastest in her heat.</em>
Explanation:
The senteces A and D are correct because both begin with a <em>subordinate</em> clause, therefore they have <em>commas</em> to <em>separate them from the main clauses</em>. The sentence B is wrong because it is <em>not necessary</em> the use of the <em>comma</em>, since it started with the main clause. and in the sentence C, the transitional word <em>however</em>, doesn't have another statement to contrast with.
I dont know but i’ma say E
Answer:
3. The chemical, which, incidentally, reduced the number of mosquitoes exponentially, had the unintended consequence of killing off this little wasp, which preyed on a type of caterpillar that ate palm leaves.
4. A description of a tornado that swept through a small town.
Explanation:
Put in your words :)
A subatomic particle with a positive charge is a proton