This energy flows through organisms and the environment and eventually flows out of the biosphere as

Heat.

Explanation: The energy flows in the ecosystem through each tropic level from one organism to another organism. The energy from the sun is used by the plants to make food by the help of the process known as photosynthesis.

The food prepared by the plants is used by the organism at various tropic levels and some amount of the energy is released into the environment in the form of heat.

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the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.