Which process is primarily responsible for returning atmospheric carbon dioxide to the Earth's crust through geological time?

Ocean absorption and sedimentation

How does the burning of fossil fuels most significantly impact the global carbon cycle and Earth's climate system?

It increases atmospheric oxygen levels, cooling the planet.

It releases large amounts of stored carbon as CO2, enhancing the greenhouse effect.

It promotes the growth of phytoplankton, absorbing excess CO2.

It directly removes greenhouse gases, stabilizing temperatures.

The total number of species present; determined by biodiversity.

The rate of reproduction; determined by birth rates.

The speed of migration; determined by seasonal changes.

The maximum population size an environment can sustain; determined by limiting resources.

It decreases algal growth, leading to clearer water.

It promotes the growth of submerged aquatic vegetation, increasing biodiversity.

It increases dissolved oxygen, benefiting fish populations.

It causes algal blooms, which deplete oxygen upon decomposition, harming aquatic life.

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