Animal fibers are fibers from animals and consist mainly of protein. They contain not only silk fiber from silkworms and fur fiber from sheep wool but also collagen fiber extracted from animal skins, chitin from crustaceans, and shellfish like shrimp and chitosan made by deacetylating chitin.
Answer:
Boiling is the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling point, the temperature at which the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere.
Explanation:
Hi
Answer:
Yes
Explanation:
The tilt of the Earth means the Earth will lean towards the Sun (Summer) or lean away from the Sun (Winter) 6 months later. In between these, Spring and Autumn will occur. The North pole always points the same way as the Earth revolves around the Sun.
Answer:
Covalent bonds
Explanation:
Covalent bonds
These types of chemical bonds are between the atoms of same or comparable electronegtivity .
The formation of bond is to attain stability of the compound formed .
Hence , octet rule plays a major rule .
For example ,
The bond between the atoms of H₂ is a covalent bond , since , one atom of H have only 1 electron in its valence shell .
So it shares its one electron with another Hydrogen atom to attain stability , and forms a covalent bond .
It looks like a bunch of squares. Lolb