Question
The Earth experiences an ice age when the overall climate becomes much cooler. During an ice age, there are several periods of glaciation, which are periods when glaciers and ice sheets cover more of the Earth's surface.
Ice reflects more sunlight back into outer space than does bare or vegetated ground. Because ice sheets and glaciers are more reflective, they absorb less sunlight and therefore release _______ heat. This causes the Earth's climate to become _______ during periods of glaciation.
A.
more; even cooler
B.
less; even cooler
C.
less; warmer
D.
more; warmer
Ice reflects more sunlight back into outer space than does bare or vegetated ground. Because ice sheets and glaciers are more reflective, they absorb less sunlight and therefore release _______ heat. This causes the Earth's climate to become _______ during periods of glaciation.
A.
more; even cooler
B.
less; even cooler
C.
less; warmer
D.
more; warmer
Answers
GPT-4o mini
The correct answer is: **A. more; even cooler**.
This is because ice reflects more sunlight (which is known as a high albedo), meaning it absorbs less solar energy and therefore releases more heat, contributing to a cooler climate during periods of glaciation.
This is because ice reflects more sunlight (which is known as a high albedo), meaning it absorbs less solar energy and therefore releases more heat, contributing to a cooler climate during periods of glaciation.