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

Cirrostratus
Altostratus
Nimbostratus
Cumulonimbus
Stratocumulus

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Environmental Science
Which of the following regarding ecological pyramids is not correct?

In most ecosystems, the pyramid of numbers and biomass are up right
The total energy flow at successive tropical level always decreases
The pyramid of energy expresses mainly the rate of food production
In tree dominated ecosystem the pyramid of numbers is inverted
In deep water ecosystem, the pyramid of biomass is upright

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