1 One of the adverse effects of smoking analogue cigarettes is the damage to the cilia. 2  Cilia are the small hair-like organelles which assist in reducing your risk of infections by pushing mucus out of your lungs. 3  The regenerative process your lungs undergo include the repair of the cilia.
Mars is approximately half the diameter of Earth, and its surface area is only slightly less than the total area of Earth's dry land. Mars is less dense than Earth, having about 15% of Earth's volume and 11% of Earth's mass, resulting in about 38% of Earth's surface gravity.
Mars is ten times less massive than that of Earth. It is the second smallest planet in the Solar System. The mass of Mars is 7.08 x 1020 tons or 6.42 X 1020 metric tons. Mars total density is 3.933 grams/cubic centimeter. The diameter of Mars is 6,792 kilometers. To illustrate these characteristics, Mars density is similar to that of the Earthâs moon.