Answer:
Boiling the cocoon helps to dissolve the adhesive that sticks the fibres together. If cocoon is not boiled, the <u>fibres obtained will be brittle,</u> and we will get fragments of the thread instead of a long continuous silk thread.
Answer:
chemical, physical
Explanation:
The forces that are responsible for the binding of the atoms which makes up the molecules are called intramolecular forces.
The types of bonds in a chemical are intramolecular forces such as
Ionic bond
Metallic bond
Covalent bond
The type of bond determines the chemical properties of the substance.
The forces that dictate the interaction of different molecules are called intermolecular forces
The types are
Hydrogen bonding
Ionic bonding
Ion–induced dipole forces
Ion–dipole forces
van der Waals forces
They vary the physical properties of a substance.
c
Deaf Smith is famous for the important role he played in the Texas Revolution. An American frontiersman noted for his part in the Texas Revolution and the Army of the Republic of Texas. He fought in the Grass Fight and the Battle of San Jacinto
According to research, in 2020, the largest building in the world is Burj Khalifa - 828metres