* Mars: The average wind speed on Mars is about 10 meters per second (22 mph). However, winds can reach speeds of up to 100 meters per second (224 mph) during dust storms.

* Earth: The average wind speed on Earth is about 5 meters per second (11 mph). However, winds can reach speeds of up to 100 meters per second (224 mph) during hurricanes.

Atmospheric conditions:

* Mars: The atmosphere of Mars is very thin, with a surface pressure of only about 600 pascals (0.087 psi). This means that the wind on Mars is much less dense than the wind on Earth.

* Earth: The atmosphere of Earth is much thicker, with a surface pressure of about 101,325 pascals (14.696 psi). This means that the wind on Earth is much more dense than the wind on Mars.

In general, the wind on Mars is much weaker and less dense than the wind on Earth. This is due to the fact that the atmosphere of Mars is much thinner than the atmosphere of Earth.