Environmental Science
All the statements are correct regarding ecological succession except

The role of decomposers becomes more and more important
It is a random process
The food chain relationships becomes more complex
Species diversity increases as succession proceeds

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Environmental Science
Low clouds retard surface cooling at night better than clear skies because:

The formation of the clouds releases latent heat energy
The clouds absorb and radiate infrared energy back to earth
The water droplets in the clouds reflect infrared energy back to earth
The clouds are better conductors of heat than is the clear night air
The clouds start convection currents between them

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