Why is water so effective at hydrogen bonding

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

Which group of algae is characterized by unicellular organisms and includes some members that would be better classified as zooflagellates? euglenophytes red algae sporozoans green algae

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