Substance A dissolves in water. What can be said about substance A? O It is unsaturated.
It is nonpolar.
It is saturated.
It is polar.

It is polar.

Explanation:

Water is a polar solvent and it can only dissolve another solute or substance.

As a general rule of solubility "likes dissolves likes".

This implies that when a polar solvent is used, it will dissolve a polar solute.

Also, a non-polar solute will only dissolve in a non-polar solvent.

answer: option (4) is the correct answer.

explanation:

areas which are at low altitudes and near the equator tend to receive direct sunlight from the sun. hence, heat energy or radiations from the sun make these areas warmer and they have warmest water.

whereas areas which are at high altitudes and away from the equator do no receive direct sunlight. hence, no direct contact from the sun makes these regions colder and thus, they have colder water.

thus, we can conclude that the statement areas at low latitudes near the equator have the warmest water because they receive the most direct sunlight best explains the relationship between an area's geography and the temperature of its surface water.

why is cellular respiration important for homeostasis?

it changes food into energy that the organism can use.

which of the following is most likely to happen if a cell is not able to divide?

the cell will not be replaced when it is damaged.

explanation: