Answer:
English in the U.S, Hindi in India, Bengali in Bangladesh, and Punjabi in Pakistan are all total different languages. I myself only know 3 Korean, English and Chinese. For example imagine I didn't know English and only Korean and traveled to the USA. It would be really hard to ask for something because I wouldn't know the language! So that is how language acts as a centripetal force.
Explanation:
One would most likely find a glacier-carved lake in Patagonia
I believe the answer is B. decomposers moving nitrogen into consumers.
A. 40 percents of the world pop and half of the economic outcome.