A.Combustion because the process of burning something
Answer:
<em>C. the nation, and since then,</em>
Exclamation: If you're joining two sentences together you need a comma to do so. By placing a comma after "nation" and "then" you are making a run-on sentence.
Answer:
All of the people at this conference are _____________.
A. Mathematic teachers
B. Mathematics teacher
C. Mathematics teachers ✔
D. Mathematics’ teacher
E. Mathematic’s teachers
Explanation:
Mathematics = a subject; long for 'maths'
Teachers = plural of teacher; since it's describing all the people we'll use the plural form.
