Question

Which of the following is considered the largest carbon reservoir?(1 point)
Responses

atmosphere
atmosphere

terrestrial biosphere
terrestrial biosphere

rocks and sediments
rocks and sediments

fossil fuels

Answer 1

The largest carbon reservoir is **rocks and sediments**. While the atmosphere, terrestrial biosphere, and fossil fuels contain carbon, the vast majority of Earth's carbon is stored in rocks and sediments, primarily in the form of carbonate minerals and organic matter over geological timescales.