SOLAR SYSTEM

UNIVERSE

SOLAR SYSTEM FORMATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why is Mercury covered with craters, but Earth is not?
A
Earth’s atmosphere protects and weathers
B
asteroids just missed Earth
C
Earth’s moon blocks asteroids
D
most asteroids land in Earth’s oceans
Explanation: 

Detailed explanation-1: -No. Mercury has no atmosphere and it has an old surface covered in impact craters, so it is very unlike Earth.

Detailed explanation-2: -Surface. Mercury’s surface resembles that of Earth’s Moon, scarred by many impact craters resulting from collisions with meteoroids and comets. Craters and features on Mercury are named after famous deceased artists, musicians, or authors, including children’s author Dr. Seuss and dance pioneer Alvin Ailey.

Detailed explanation-3: -There are two main reasons. First, Mercury is small and doesn’t have much gravity so it’s hard to hold onto an atmosphere. Second, Mercury is close to the Sun so any atmosphere gets blasted away by stuff being blown off the Sun.

Detailed explanation-4: -Mercury’s surface shows its history of impacts back to the beginning of the solar system. Mercury lacks wind, rain, volcanoes, or other erosion that would erase the craters.

Detailed explanation-5: -Since Mercury has hardly any atmosphere, it does not have weather like storms, clouds, winds or rain. Its surface temperature can reach 801 Fahrenheit during the day (because it is so close to the Sun) and can drop to-279 Fahrenheit at night (because there is no atmosphere to trap the daytime heat).

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