Question

Local conditions, such as heavy rainfall or the removal of plants, may limit the amount of nitrogen, phosphorus, or calcium available to a particular ecosystem, but the amount of carbon available to the system is seldom a problem because:

• A. Organisms do not need very much Carbon.
• B. Plants can make their own Carbon using water and sunlight.
• C. Plants are much better at absorbing Carbon from the soil
• D. Many nutrients come from the soil, but Carbon comes from the air

Answer 1

The correct option is D Many nutrients come from the soil, but Carbon comes from the air

Many nutrients like Nitrogen, Phosphorous and Calcium are obtained from the soil in the form of micro and macronutrients. The Carbon used by plants are is in the form of $C{O}_2$ which is abundantly found in the atmosphere.