Adam is doing a science project. He wants to find out how the height of the Sun affects the length of shadows. He will measure the shadow of his house at different times. He will see when the shadow is the longest. Which is a scientific prediction Adam could make about his project?

Explanation:

The scientific prediction, or hypothesis of the experiment, may be that the length of the shadow decreases as the height of the Sun increases, due to the larger angle of inclination of the Sun above the horizon.

In this experiment, the independent variable is the the heigth of the Sun, and the dependent variable is the length of the shadow of the house. Since the former determines the latter.

Thus, the hypothesis, or scientific prediction,  is a plausible expllanation of the relation between the two variables. It can be in the form of if . . . then, or an equivalent, and must include the reason for such relation.

Then, a possible prediction could be:

If the Sun rises then the length of the shadow increases, due to a larger angle of inclination of the Sun above the horizon, or, equivalently, "as the Sun rises, the length of the shadow of the house decreases, due to the due to the greater inclination of the sun with respect to the horizon

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.

the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .