A chemical reaction. reactions occur with two or more molecules interact. and molecules change bonds between atoms are broken are created to form new molecules are they interact what happens possibilities are infinite
The correct answer should be <span>a) Drive more than 500 miles on one tank of gas.
This is because fuel efficiency is a focal point in this answer, while D. deals with fuel efficiency, but that is not the main point of the advertisement. </span>
<span>The best opening sentence for such a business/informal letter is B. Your order of February 10 arrived in our office today. This is the only sentence that doesn't sound too formal and use a bunch of fancy words in order to make it seem more formal, which is the reason why it is the least formal, in this case and thus the correct answer.</span>