When averaged over time, the amount of energy arriving at the Earth from the Sun ________ . This relationship is called the Earth's energy balance.

Question

Quizplus · Accepted Answer

The Earth's energy balance refers to the balance between the amount of energy received from the Sun and the amount of energy emitted back into space by the Earth. If the amount of energy received from the Sun were to be greater than the amount of energy emitted to space by the Earth, the Earth would be continually warming up. Conversely, if the amount of energy received from the Sun were to be less than the amount of energy emitted to space by the Earth, the Earth would continually cool down. Therefore, for the Earth's temperature to remain stable, the amount of energy arriving at the Earth from the Sun must be equal to the amount of energy emitted to space by the Earth, on average over time. So, choice C is the correct answer. Choice A and B are incorrect. Choice D is not relevant to the Earth's energy balance.

When Averaged Over Time, the Amount of Energy Arriving at the Earth