Is heat transferred in our atmosphere by conduction?

There is practically no net heat transfer into our atmosphere from space, but a very small amount of conduction may occur within it. Did you mean into our atmosphere from space, or within it?

Convection is the predominant heat transfer method in the atmosphere; consider wind. Gases have very low thermal conductivity values because their molecules have very little effect on one another, i.e., to transfer kinetic energy from one to another. These values will decrease further the larger the altitude as the density of the gases will decrease.

Since space is a vacuum and cannot support conduction or convection, the most common method of heat transfer from space into the atmosphere is radiation from the Sun. However, because electromagnetic waves can propagate through vacuums, infrared rays emitted by the sun can travel through space to reach Earth.

No, heat transfer in our atmosphere primarily occurs through convection, radiation, and latent heat processes. Conduction plays a minor role due to the low density of the air and the predominance of gases in the atmosphere, which are poor conductors of heat.

Heat transfer in the Earth's atmosphere primarily occurs through convection rather than conduction. Conduction involves the transfer of heat through direct contact between materials, but the atmosphere is composed of gases which are poor conductors. Instead, heat is transferred in the atmosphere primarily through convection, where warm air rises and cooler air sinks, creating currents that transport heat from one region to another.