HELP MY SISTER WILL KILL ME! Warm air rising at the equator and cold air sinking at the poles is one reason for which type of movement of air?

conduction

radiation

convection currents

earth's rotation

Convection currents, air flows towards the equators

Ibelieve the answer is c. 

Tamarind can be grown on homesteads, plantations, and wasteland or as a forest tree. methods of propagating tamarind there are two methods of propagating tamarind trees: seed propagation and vegetative propagation. seed propagation: it involves the collection, preparation and direct planting of the seed.answer from google full credit to google.