Answer<u>:</u><em><u>C. Population size determines water demand</u></em>
Explanation:Population size determines water demand. Water is needed for household use, sanitaion,farming, and industrail use,so when the population increases,water demand increase.
<em>Hope this is right(-)-) </em>
<em><u>For study island</u></em>
Genes are partly in chromosomes and partly in DNA.
Based on your knowledge of the carbon cycle, what do you think might happen if humans were to continue to clear and burn vast areas of forests for building? Eventually we would run out of forests and the air would be very polluted. Explain how a nutrient can be a limiting factor in an ecosystem.
The fastest bird is a roadrunner
