What is a potential benefit of using alley cropping?

slowing soil erosion
increasing cash crop yields
decreasing labor costs
shifting agriculture to new areas

The correct option is B. Increasing cash crop yields.

Explanation:

Alley cropping can be described as an effective agricultural technique in which crops are grown between rows of trees at each side. This techniques protect the crop plants from being destroyed and increases the yield of crops. Alley cropping is a technique that is used by various farmers to increase their income as crop production is improved.

The main reason that this technique is effective is that the fertility of the soil enhances by this technique.

i believe the correct answer from the choices listed above is the first option. the scientists need to look at the   validity of data, claims, hypotheses, and observations before  developing an argument. they base their arguments on facts that are present and they make sure they have proofs. 

explanation:

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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