Environmental Science
A graphic representation of number of individuals of different species belonging to each trophic level in a an ecosystem is known as

Pyramid of energy
Pyramid of number
Ecological pyramid
Pyramid of biomass

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Environmental Science
The albedo of the earth's surface is only about 4%, yet the combined albedo of the earth and the atmosphere is about 30%. Which set of conditions below best explains why this is so?

High albedo of clouds, high albedo of water
High albedo of clouds, low albedo of water
Low albedo of clouds, low albedo of water
Low albedo of clouds, high albedo of water

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