Explanation

 non-metallic minerals are:

• limestone
• mica
• gypsum
• coal
• dolomite
• phosphate
• salt
•  granite.

****

while

Ores of iron, aluminum, gold, and silver are examples of metallic minerals. Diamond, slat, potash, etc.

Explanation

Separation of water or sand or cement from freshly mixed concrete is known as: Segregation.18-Feb-2019

Explanation

Short-sightedness is caused due to elongation of the eyeball

 It also may result when the curve of the cornea is too steep. 

The messages sent from the retina to the brain are perceived as blurry

Explanation

Vertebrate is an animal of a large group distinguished by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes.

Explanation

Spherical shape is because drop always tends to acquire minimum surface area due to the surface tension, and for a given volume, the surface area of sphere is minimum.

Explanation

Explanation

Sodium Bicarbonate is the monosodium salt of carbonic acid with alkalinizing and electrolyte replacement properties

Explanation

Sociologists today employ three primary theoretical perspectives: the symbolic interactionist perspective, the functionalist perspective, and the conflict perspective. These perspectives offer sociologists theoretical paradigms for explaining how society influences people, and vice versa.

Explanation

Fricatives are the kinds of sounds usually associated with letters such as f, s; v, z, in which the air passes through a narrow constriction that causes the air to flow turbulently and thus create a noisy sound.

Explanation

Solids have a high degree of elasticity, which means they can return to their original shape after deformation.

This property allows sound waves to travel more efficiently and quickly through solids

Because the particles are tightly bound and can transmit vibrations rapidly.