Answer:
3. all bodies in the solar system formed from an enormous gas cloud.
Explanation:
Nebular hypothesis -
According to this theory , the planets are made up of cloud material associated with the youthful sun , that is rotating in slow motion .
Later it was given that , all the celestial body present in the universe are composed of huge gas cloud .
Hence, from the given options , the correct statement for the nebular hypothesis is 3.
Answer:
Explanation:
The earth rotates on its own axis. When the rotational axis of the earth changes, it leads to precession. Earth's precession is a common phenomenon that has been observed by astronomers for a long time. The effect of changing axis of rotation would be the amount of solar radiation that would be received at any point on the earth.
Answer:
In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. A crystal structure is composed of a unit cell, a set of atoms arranged in a particular way; which is periodically repeated in three dimensions on a lattice.
Explanation:
Soil forms continuously, but slowly, from the gradual breakdown of rocks through weathering. Weathering can be a physical, chemical or biological process: physical weathering—breakdown of rocks from the result of a mechanical action.Oct 8, 2013
