Which best explains why a scientist would use nets to capture and count organisms in a river?.

b. the carbon cycle ensures living things have a source of hydrogen

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

acceleration= v2-v1/t so 8m/s-3m/s / 3s =to 8/3 or

2.67 m/s^2

hope i

-lavira: )