Mars
Mars has an atmosphere with low air pressure which is mostly carbon dioxide.
Mercury has almost no atmosphere so that could be the answer. The otherpossible answeris Mars, which certainly does have a (thin)atmosphere.
Mercury, because the gravity on it is to small to hold any atmosphere in the first place.
When it comes to determining a gas giant's volume, diameter, etc., the "surface" is the depth in the planet's atmosphere at which the air pressure equals one atmosphere (the same air pressure as in the earth's atmosphere at sea level).
That's MARS.
Mars has a thin atmosphere with low air pressure that is composed mostly of carbon dioxide. Its atmosphere is about 95% carbon dioxide, with very little oxygen compared to Earth.
by having air
The atmosphere exerts pressure because of the weight of the air above pushing down on the air below. This pressure is caused by the force of gravity acting on the mass of the air molecules in the atmosphere.
Yes, a planet generally needs an atmosphere to have weather because weather involves the movement and interaction of air masses, which is facilitated by an atmosphere. An atmosphere helps regulate temperature, pressure, and moisture levels, which are all essential for weather phenomena like precipitation, wind, and storms to occur.
Atmosphere, but can be composed of different elements.
Atmosphere.
Its atmosphere