Wind blows air on the surface of the earth from a high pressure center to a low pressure center (this is depicted in the image attached). The area between the two "centers" is referred to as pressure gradient. The warm air in the region of the low pressure center then rises up into the atmosphere. The warm air then cools up in the atmosphere and then passed down back to the earth's surface
la ósmosis, la difusión simple, la difusión facilitada y el transporte activo son mecanismos que permiten la entrada y salida de sustancias a través de la membrana celular
