Why was the concern over global cooling replaced with a concern over global warming?
a. The science community needed a cause to frighten the general population.
b. Steady surface temperature increases were noted between the 1970's and 90's.
Air pollution only became a concern in the 1980's.
d. Scientists observed severe ocean acidification.
Please select the best answer from the choices provided

What are the two main phases of a cell cycle

The terrestrial planets are characterized by having a a.) silicate core b.) iron-rich silicate core c.) iron-rich metallic core d.) none of these

Producing disposable grocery bags consumes resources. recycling disposable bags is a solution that can recover some of the resources used to make new bags. which of the following behaviors could further refine the solution? a. disposing of bags by burning them b. reusing bags whenever possible c. using bags at once so that they do not break d. using only nonrenewable materials to make new bags subject is environmental science for apex users