Environmental Science
A graphic representation of number of individuals of different species belonging to each trophic level in a an ecosystem is known as

Pyramid of energy
Ecological pyramid
Pyramid of biomass
Pyramid of number

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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 farther from the sun in July
The sun's energy is less intense in the Southern Hemisphere
The earth is closer to the sun in January

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