Which of these disruptions would cause an excess output in the Carbon Cycle?

Complete Question:

The carbon cycle includes processes that release carbon into the atmosphere and places that act as carbon reservoirs. The diagram below shows both major processes that release carbon and major carbon reservoirs. (See attached picture for the diagram being referred to)

Which of these disruptions would cause an excess output in the carbon cycle?

 A. The destruction of terrestrial biota

 B. Increases in marine biota

 C. A reduction in the use of fossil fuels

 D. A thickening of ocean sediments

A. The destruction of terrestrial biota

Explanation:

Terrestrial biota play a very cogent and fundamental role in the regulation of carbon in the carbon cycle. Serving as a reservoir of carbon, terrestrial biota helps in absorbing carbon dioxide from the atmosphere.

Therefore, the destruction of terrestrial biota would lead to an excess output of carbon in the carbon cycle due to the reduction in the capacity of forest and other plant community to absorb carbon dioxide from the environment.

Destruction of terrestrial biota would result in an excess output in carbon when compared to other disruptions.

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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