Are humans learning how to prevent eruptions

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

Mineral rich water heated by newly found oceanic crust escapes through cracks in the ocean floor called

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots