It is due to a lack of providable energy to the next trophic level of the energy pyramid. Primary consumers only obtain around 10% of energy that producers have, and the energy depletes as you move further and further up the food chain, until you reach the tertiary consumers which have the least amount of energy at their disposal, meaning there are less of them than other organisms further down the energy pyramid.
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Answer:
Herbivores would increase causing producers to decrease.
Explanation:
If the carnivores are gone, herbivores wouldn't get eaten and increase, and more herbivores mean less producers available.
Answer:
oxygen is responsible for rusting
The geosphere is about 99.94% of Earth's mass, so C is the answer.
