well according to my memory and one of the save the earth communities, the great white shark is almost extinct cause of pollution, and mainly poachers, lots of poachers for soup made of shark fins.
they would cut off the fin then throw the dead shark back in the ocean.
i hope this helped.
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The answers is all of the above
B, the independent variable because this is the one that is purposefully changed in an experiment to test the hypothesis.
One reason is because of its given color. Typically, Algae or moss grows in saturated areas. The reason it is been is because doc its pigment, or chlorophyll found in its anatomy.