What might explain the real-world results, show in the graph to the right, for one class of twenty students? Check all that apply.
A. Fourteen people were immune at the beginning.
B. Noninfected individuals never came into contact with infected individuals.
C. A few people were immune at the beginning, and other people never came into contact with the disease.
D. The people who became sick got better before they could pass on the disease.

A. Fourteen people were immune at the beginning.

C. A few people were immune at the beginning, and other people never came into contact with the disease.

E. The people who became sick got better before they could pass on the disease.

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

some of your causes might be acidic rain or natural wildfires that cause the parks to be degraded

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