The continental slope is distinguished by
A.
a steep slope.
B.
a gradual, gentle slope.
C.
very shallow water.
D.
very deep water.

Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d

What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen

If the nucleus of a cell was removed the cell wouldn’t be able to make proteins because