How might the carbon cycle be directly affected if microbes and fungi needed for decomposition of dead animals & plants were scarce? a) animal respiration would be unable to take place b) plant transpiration would be unable to take place c) sunlight would be in short supply limiting photosynthetic activity d) the recycling of nutrients into the soil for fossil fuels would be in short supply

D) the recycling of nutrients into the soil for fossil fuels would be in short supply.

Decomposition is the process of recycling of nutrients. In this process, the dead tissues and other organic matter obtain from the living organisms is converted into simpler organic forms conducted by the fungi and microbes present in the soil, that are again utilized by the organisms like fungi, microbes and plants as source of food and nourishment. Carbon is the main source of ingredient in all organisms. The decomposition process releases organic carbon into the soil, contributing to the carbon cycle in nature.

If the microbes and fungi needed for the process of decomposition are scarce, then the recycling of nutrients into the soil for fossil fuels would be in short supply because the decomposing agents are necessary for the production of fossil fuels after degradation and decomposition of dead organic matter.  

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