EVERYDAY SCIENCE

Detailed explanation-1: -The uneven heating of the regions of the troposphere by the sun ( the sun warms the air at the equator more than the air at the poles )causes convection currents, large-scale patterns of winds that move heat and moisture around the globe.

Detailed explanation-2: -Surface heating produces convection currents in the troposphere. As the Sun’s rays warms the Earth’s surface, the air near surface absorbs heat and rises, creating convection currents. As the air rises in the troposphere, it cools, becomes denser, and sinks back toward the surface.

Detailed explanation-3: -The troposphere gets some of its heat directly from the Sun. Most, however, comes from Earth’s surface. The surface is heated by the Sun and radiates back into the air. This makes the temperature higher near the surface than at higher altitudes.

Detailed explanation-4: -The troposphere is heated from below; sunlight warms the ground or ocean, which in turn radiates the heat into the air immediately above it. Temperature drops off at a rate of about 6.5° C per km (about 3.6° F per thousand feet) of increased altitude within the troposphere.

Detailed explanation-5: -Although the sun light comes from the top to the bottom of the atmosphere, the troposphere is primarily heated from the bottom. This is because the surface is much better at absorbing a wide range of solar radiation as compared to the air. Much of the sunlight filters down through the air and to the surface.