Mercury, Venus, and the Moon

Running Head : EROSIONAL ACTIVITY ON MERCURY , VENUS , AND MOON

Erosional Activity on Mercury , Venus , and Moon with relates to Planetary Size and Distance from the Sun

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Erosion in Earth is mainly caused by water or moisture , wind , and other earthly activities . However , in other planets like Mercury and Venus , as well as our own satellite , which is the Moon , there is less erosion activity . Considering their distance from the Sun , the two mentioned planets are the closest ones to the Sun , and in case of Moon , it has the

same distance as the Earth from the Sun which is 1 astronomical unit . We could say that in these heavenly bodies , the moisture is least to exist since they are prone to the intense heat of the Sun , considering that the Moon gets its light from the Sun . Aside from that , the Sun has strong gravity that enables it self to pull the planets and other heavenly bodies in the Solar System . Considering that the Mercury and Venus are the planets considered closest to the sun , both planets have received also the strongest attraction of the gravitational pull . In this case , the materials of the planets are more intact that could prevent to be eroded

In relation to the planetary size , it is correlated to the gravity such that the bigger the planet or the heavenly body , the greater of its gravitational pull . The Mercury , Venus , and Moon , which are relatively small bodies in Solar System , it has lesser gravity pull than the Earth However , with the influence of the Earth 's gravity to the Moon , it prevents the moon from its orbiting and other erosional activity in the said satellite . Mercury and Venus , as it was mentioned before , both planets have been affected by the gravitational force of the Sun . The fallen heavenly bodies , such as meteor and asteroids , that also causes erosion in planets would be avoided by attraction of gravity pull of the Sun . Instead of collision with Mercury or Venus , it would be then collided with the Sun . In this case , there would be lesser erosional activity

Reference

HYPERLINK "http /encarta .msn .com /encyclopedia_1 /Mercury_ (planet .html http /encarta .msn .com /encyclopedia_1 /Mercury_ (planet .html - July 1 , 2007

HYPERLINK "http /www .christa .org /moon .htm - July 1 http /www .christa .org /moon .htm - July 1 , 2007...