The circulation of the atmosphere is the result of what?

Because the sun heats more at the equator

Explanation:

warm air in the tropics,near the equator,begins to rise .when the warm gets to about 10 - 15 km (6-9 miles) above the earth surface, it flows towards the poles. once the air cools it goes back to the equator and the process is repeated. this process is called convection

explanation:

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.