Aheterogeneous mixture is a
a. component added to sand that makes it inseparable.
b. mixture in which its components retain their identity.
c. mixture in which its components can't be separated.
d. mixture that always contains water.

Compare and contrast refraction of light and sound will give brainliest

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.