SOLAR SYSTEM

UNIVERSE

PLANETARY INTERIORS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This process is where young Earth was hit by many asteroids and other space junk.
A
planetary differentiation
B
convection currents
C
bombardment
D
accretion
Explanation: 

Detailed explanation-1: -Space debris pelted Earth in the late heavy bombardment stage (LHB) about 4 billion years ago in the Hadean Eon. To say the least, it was a violent stage in Earth’s geologic history. Asteroids, comets, and space debris pelted our young planet Earth.

Detailed explanation-2: -About 4 billion years ago, the terrestrial planets were bombarded by asteroids following an orbital shake-up of the outer Solar System.

Detailed explanation-3: -Impact craters on the Moon, Earth, and other moons and planets may be evidence of this period of heavy bombardment. Such a period of heavy impacts would have had a significant effect on the evolution of the planets and the development of life on Earth.

Detailed explanation-4: -Early Earth suffered constant threat of attack from leftover planet-building material. From about 4.5 to 3.8 billion years ago, failed planets and smaller asteroids slammed into larger worlds, scarring their surface.

Detailed explanation-5: -A meteorite is a fragment of spatial matter that falls to the surface of a planet. Most meteorites that fall to Earth come from the Asteroid Belt. Watch as a meteorite travels to Earth, causes an explosion, and creates an impact crater.

There is 1 question to complete.