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

In tree dominated ecosystem the pyramid of numbers is inverted
In deep water ecosystem, the pyramid of biomass is upright
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

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Environmental Science
Thermal belts are:

Pockets of warm air resting on a valley during the afternoon
Pockets of cold air resting on a valley floor at night
Cold, below-freezing air found at the top of a mountain
Warmer hillsides that are less likely to experience freezing conditions

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Environmental Science
The most important reason why summers in the Southern Hemisphere are not warmer than summers in the Northern Hemisphere is that:

Over 80% of the Southern Hemisphere is covered with water
The earth is closer to the sun in January
The sun's energy is less intense in the Southern Hemisphere
The earth is farther from the sun in July

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