Maths-
General
Easy
Question
Albedos of Various Earth Surfaces
An albedo is the amount of light reflected from a surface divided by the amount of light falling on the surface. The amount is typically measured in watts per square meter. The table shows the minimum and maximum albedos for different types of surfaces on Earth.
For which of the following surfaces is the range of albedos the greatest?
- Meadow
- Crop
- Desert
- Snow
The correct answer is: Snow
BY OPTION checking
- Meadow ( range = max - min = 0.19 - 0.11 = 0.08)
- Crop( range = max - min = 0.24 - 0.16 = 0.08)
- Desert( range = max - min = 0.29 - 0.26 = 0.03)
- Snow ( range = max - min = 0.84 - 0.41 = 0.43)
max = 0.43
Option D ( snow has the greatest range of albedos )
max = 0.43
