Environmental Science
Mycorrhiza represents

Symbiotic association between a fungus and roots of higher plants
Parasitic association between a fungus and an alga
Parasitic association between a fungus and roots of plants
Symbiotic association between a fungus and liverworts

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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?

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

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