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Gennadij [26K]
3 years ago
5

On average, it appears that over the past 25 years, improved air quality in the United States has resulted in __________ in the

lifespan of the average individual.
A. an increase of one to two days

B. a slight decrease

C. an increase of about five months

D. an increase of about two and one-half years
Biology
2 answers:
Elena-2011 [213]3 years ago
6 0

Answer:

Answer is C. An increase of about five months.

Explanation:

Air pollution is a situation whereby the air is being contaminated by harmful substances such as carbon {iv] oxide. It is a threat to plants, animals and human health.

Improving air quality is a method to reducing the level of contamination of the air to a reasonable minimum, and in the process extending the lifespan of the resident organisms.

sergey [27]3 years ago
5 0

Answer:

C. an increase of about five months

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