Which of the following is a source of water pollution?
a. sewage
b. oil spills
c. fertilizers
d. all of the above

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The rate at which molecules water and oxygen can enter a cell is determined by the-

Are the earth's ocean floor and continents the same age geologically? why or why not?

Indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. chinchilla x albino a) all chinchilla b) 1/2 chinchilla, 1/2 albino c) 3/4 chinchilla, 1/4 albino