Question

1. what role does the albedo effect play in climate change?

a. it decreases the strength of ocean currents
b. it leads to erosion in dry environments
c. it affects how much sunlight earth reflects
d. it enhances the speed of river flows

Explanation:

To determine the role of the albedo effect in climate change, we analyze each option:

• Option a: Ocean currents' strength is not directly related to albedo (albedo is about reflection of sunlight), so a is incorrect.
• Option b: Erosion in dry environments is not a function of albedo; albedo doesn't cause erosion, so b is incorrect.
• Option c: Albedo is defined as the fraction of solar energy (sunlight) reflected by a surface. So it directly affects how much sunlight Earth reflects, which impacts climate (e.g., ice has high albedo, dark surfaces like oceans/forests cleared have low albedo). This matches the albedo effect's role.
• Option d: River flow speed is unrelated to albedo (albedo is about sunlight reflection), so d is incorrect.

Answer:

c. It affects how much sunlight Earth reflects