SOLAR SYSTEM

UNIVERSE

SOLAR SYSTEM FORMATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The moon was formed when a ____ smashed into Earth, spreading debris into orbit that then ____ to form the moon.
A
asteroid, froze
B
planetesimal, accreted
C
comet, accreted
D
planetesimal, froze
Explanation: 

Detailed explanation-1: -The Earth formed over 4.6 billion years ago out of a mixture of dust and gas around the young sun. It grew larger thanks to countless collisions between dust particles, asteroids, and other growing planets, including one last giant impact that threw enough rock, gas, and dust into space to form the moon.

Detailed explanation-2: -The giant-impact hypothesis, sometimes called the Big Splash, or the Theia Impact, suggests that the Moon was formed from the ejecta of a collision between the early Earth and a Mars-sized planet, approximately 4.5 billion years ago in the Hadean eon (about 20 to 100 million years after the Solar System coalesced).

Detailed explanation-3: -The giant impact hypothesis is that the Moon was created out of the debris from a collision between the young Earth and a Mars-sized protoplanet.

Detailed explanation-4: -As the Earth is spinning, these high and low tides move across the globe over 24 hours, meaning each coastal location experiences two high tides and two low tides every day. In reality, it is a little more complicated. The Moon’s 27-day orbit of the Earth means the times at which high and low tides occur change.

There is 1 question to complete.