Explanation

Demography is the statistical study of human populations.

Demography examines the size, structure, and movements of populations over space and time. 

Explanation

Except at the magnetic pole, the Earth's magnetic field is always horizontal

 the horizontal component of the earth's magnetic field is zero at the magnetic poles.

Hence, Earth's magnetic field always has a horizontal component except at the magnetic poles where it is zero.

Explanation

Polarize

پولرائز کرنا

Explanation

Chloride ion and potassium ion are isoelectronic.

AGM 25-12-2022

Explanation

The air bubble in the water shines due to the phenomenon of total internal reflection

Explanation

Fractions with the same denominator are called like fractions.

Example:½, 3/2, 5/2, 7 /2 etc

Sh5-9-2023

Explanation

On 11 August 1955, Muhammad Ali was appointed as the Prime Minister of Pakistan by then-Governor-General Iskandar Mirza, upon the dismissal of the Bogra's Talent administration.

Explanation

Explanation

The ultraviolent rays are filtered through Ozone Layer.

The ozone layer, often known as the ozone shield is a part of the Stratosphere.

ND12_8_2023

Explanation

Retinene is better known as retinaldehyde or simply retinal

and is fundamental in the transduction of light into visual signals in the photoreceptor level of the retina (known as the visual cycle)

rhodopsin, also called visual purple, pigment-containing sensory protein that converts light into an electrical signal.