China's lack of pollution contols makes the burning of fossil fuels more of a problem. A.true
four-year universities greatly varies.
I'd say B. but i'm not sure. It could be D. aswell
Explanation:
Because history gives us the tools to analyze and explain problems in the past, it positions us to see patterns that might otherwise be invisible in the present – thus providing a crucial perspective for understanding (and solving!) current and future problems.