What are small scale and large scale wind currents called? It has something to do with convection like small convection currents or global convection currents or thermal?? completely confused

Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth. which of the following is not a constant or control for this experiment? a. the type of plant b. the amount of soil c. the amount of water d. the amount of time in the sun select the best answer from the choices provided a b c d

Why did large numbers of african migrate to the americas

If a population is growing quickly in a small area then what must increase as well