Environmental Science
A dim, "watery" sun visible through a gray sheet-like cloud layer is often a good indication of ____ clouds.

Cumulonimbus
Stratocumulus
Nimbostratus
Cirrostratus
Altostratus

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Environmental Science
Lead poisoning

increases O2 carrying capacity of myoglobin in muscles
reduces O2 carrying capacity of myoglobin in muscles
reduces O2 carrying capacity of hemoglobin in blood
increases O2 carrying capacity of hemoglobin in blood

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Environmental Science
At night, low clouds:

Have no effect on the atmospheric greenhouse effect
Weaken the atmospheric greenhouse effect
Enhance the atmospheric greenhouse effect
Are often caused by the atmospheric greenhouse effect

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