Answer: Van der Waals forces
Explanation:
Van der Waals forces are weak intermolecular forces that depend on the distance between two particles. They are caused by correlations in the change in polarization between two nearby particles. To put it in other words, when a particle changes its polarization (becomes more positive on one end and more negative on the other), so does the adjacent particle, and the next one, and so on. This causes these particles to stick together weakly.
The tiny "hairs" increase the surface area of the gecko's feet in contact with the wall, which makes the bond stronger and allows it to support all of its weight.
Because experiments have shown that geckos stick well to both hydrophobic and hydrophilic surfaces, we can assume there aren't any hydrogen bonds present.
Ionic bonds can't be present either because geckos wouldn't stick to electrically neutral surfaces, as these bonds require charged molecules.
Answer:
to break down food into smaller , usable form
Explanation:
the stomach breaks down food into smaller, usable forms
Anthrax originated from Egypt
A decrease in the paved surfaces on earth will increase amount of light reflected or increase albedo.
<h3 /><h3>What is a paved surface?</h3>
A paved Surface refers to a surface covered by concrete, asphalt, masonry, or a similar material.
Paved surfaces have low albedo, that is they have low light reflectivity.
<h3>What is the effect of paved surface of Earth on albedo?</h3>
Since paved surfaces have low albedo, a decrease in the paved surfaces on earth will increase amount of light reflected (albedo).
Learn more about albedo here: brainly.com/question/14238698
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The right choice would be A
