Hydrogen bonds<span> are much weaker than covalent bond because of its bond is formed through fundamentally electrostatic interactions.
Hydrogen bonds happen due to dipole-dipole attraction while covalent bonds happen when valence electrons are shared.
Reasons why complementary nucleotides across the double-stranded dna bond together using hydrogen bonds rather than covalent bonds are (1) the distance between two strands, (2) size of the bases, (3) geometry of each base.</span>
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The correct answer is this: IT BECOMES LESS DENSE AND RISES TO THE SURFACE.
The water at the earth's poles are cold and dense. This cold water sink and move along the ocean floor in a current. As it moves towards the equator, the cold water from the poles push up the warmer water, this becomes less dense and rise to the surface.
Geological activities that can be occur in the eraty crust.
in divergent oceanic - the two plates oceanic and oceanic diverge or move towards each other and the resulting activities such as mid ocean ridges.
in divergent continental - the two continental plates move toward each other and the resulting activities such as valleys in land due to diverging of land.
Hello!
Your answer to this question is
B) 2 hydrogen atoms are present in each water molecule
Hope this help u!!