Environmental Science
What is an Incinerator?

Both a & b
None of these
Furnace used for treating liquid waste
Furnace used for burning solid waste

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

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

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