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

Acladogram is a branching diagram that represents suggested evolutionary relationships among organisms based on the presence of unique traits. a scientist discovers a new organism that lacks limbs and does not have a true backbone. the organism lays eggs to produce offspring and has a cartilage-like rod known as a notochord running along its dorsal surface. on the cladogram below, select the species to which the newly discovered organism is most closely related.

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures

Can create a hboth of these instruments can measure wind speed. doppler radar and psychrometer anemometer and hygrometer doppler radar and anemometer radiosonde and psychrometer