Questions by Charles Ma

Questions by Charles Ma

The _______________ refers to the number and intensity of social interactions.

asked Feb 11, 2018

1 answer

0 votes

164k views

What is a major source of carbon in the marine ecosystem? a- calcium carbonate released by marine animals. b-carbon dioxide released during photosynthesis of marine plants. c-carbon dioxide released from

asked Mar 8, 2017

2 answers

1 vote

99.9k views

Which is done by both a historian and an archaeologist? A. mostly studies written records B. uses imagination to recount the past C. bases conclusions on hard evidence

asked Dec 23, 2016

2 answers

3 votes

94.7k views

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