Question

Read the sentence and answer the question that follows.

The prevalence of acid rain in the rainforests of South America is evidenced by the widespread damage to trees and the decline in the population of certain species of fish in the area.

Based on the use of the context clues provided in the sentence, what is the best definition of prevalence?

A medical condition that exists in South America
The lack of understanding about a topic
Something that is rarely or never known to occur
The commonness or frequency of something

Answer 1

Prevalence is defined as the commonness or frequency of something, evidenced by the widespread occurrence of an issue such as acid rain in a certain area.

Step-by-step explanation:

Based on the context clues provided in the sentence, the best definition of prevalence is the commonness or frequency of something. In the given context, prevalence refers to the widespread occurrence of acid rain and its consequent damage to rainforests and fish populations in South America.

Prevalence is an important epidemiological measure used to describe the proportion of individuals in a population who have a particular condition at a specific point in time, as highlighted in the data regarding infectious diseases and the impact of acid rain in different parts of the world. In the example of South Africa, the prevalence of a disease being 17.3 percent signifies that this percentage of the population is infected at the time of the study.

Answer 2

The commoness or frequency of something

Step-by-step explanation:

since in the paragraph it says that the prevalence of the acid rain caused a wide spread damage it insinuates that continuous rainfall of tha acid rain is bad to the trees in South America