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Scrat [10]
3 years ago
6

Which example best represents the adhesion, cohesion, and surface tension of water?

Biology
2 answers:
Grace [21]3 years ago
7 0

Answer: Water droplets forming a bead-like shape over a glass table

Explanation: Adhesion is the force of attraction between different kind of molecules.

Cohesion is the force of attraction between similar kind of molecules.

Surface tension is the net downward force acting on the surface of a liquid due to the attraction from the molecules present in the bulk. The surface acts like a stretched membrane and thus acquires a spherical shape.

Ice forming on the surface of water bodies in winters is due to the less density of cold water which freezes to ice at its freezing point.

The ability of water to dissolve many substances is sue to the polar nature of water.

tankabanditka [31]3 years ago
4 0
Answer:  [C]: "<span>Water droplets forming a bead-like shape over a glass table".
__________________________________________________________</span>
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A student would like to determine how heating a liquid changes its volume. The student hypothesizes that the liquid will increas
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Answer:

B.  The volume of the liquid should be measured before it is heated.

Explanation:

A student made serious mistake that he did not measure the volume of the liquid before heating.

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The initial hypothesis of the student shows that he wants to know the change in volume, so it is inevitable to calculate the initial volume to know the difference after the completion of experiment.

<em>All other options seem less appropriate than Option B, therefore B is the right answer.</em>

I hope it help!

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7 0
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The nitrogen cycle is most directly dependent upon-
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B) Nitrogen-fixing bacteria and lightning

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As bacteria are responsible for most of the chemical conversion in the nitrogen cycle such as nitrogen fixation (first step) is done by soil bacteria (Cyanobacteria) that form ammonia, which is toxic to plants; nitrification in which ammonia is converted into nitrites and nitrates with the help of Nitrobacter and denitrification bacteria involve Pseudomonas, and Achromobacter which convert nitrite and nitrate into nitrogen.

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