Question

which of the following best explains why air pollution that was once blamed for global cooling is now considered responsible for global warming? a. pollution began reflecting sunlight and heat rather than absorbing it. b. evidence of global warming became overwhelming. c. scientists mistakenly thought pollution reflected sunlight and heat rather than absorbed it. d. congress required scientists to assign a cause to global climate change. please select the best answer from the choices provided a b c d

Explanation:

Initially, scientists thought pollution reflected sunlight and heat (causing cooling), but later realized it absorbs heat, contributing to global warming. Evidence of global warming became overwhelming, changing the perception of the role of air - pollution in climate change. Option a is incorrect as pollution absorbs heat not reflects it now. Option d is not valid as Congress did not force scientists to assign a cause in this way.

Answer:

C. Scientists mistakenly thought pollution reflected sunlight and heat rather than absorbed it.