What is the main cause of global convection currents?

A. Deforestation

B. The Greenhouse effect

C. The increase in the number of cities

D. Uneven heating of the Earth by the sun


Answer :

A. Deforestation

Energy from the sun is transferred from the Earths surface to the atmosphere, resulting in atmospheric convection currents that produce winds.

Answer: The answer is D, uneven heating of the Earth by the Sun.