Explanation

An ornithologist is someone who studies ornithology the branch of science devoted to birds.

Ornithology means پرندوں کا مطالحہ

ND5-5-2023

Explanation

The main constituent of hemoglobin is iron.

Hemoglobin transports oxygen and exhibits a quaternary protein structure.

Iron is crucial for hemoglobin formation; its deficiency can impact hemoglobin production.

Heme in hemoglobin is protoporphyrin IX.

Infants reach adult hemoglobin levels by the end of their first year.

Ferric ions are not part of hemoglobin.

Hemoglobin is found dissolved in plasma.

Explanation

The rate of change in displacement is referred to as velocity.

The velocity of an object generally changes during its motion.

The change in position is known as displacement.

The maximum displacement from the mean position is called amplitude.

Explanation

Decomposers are organisms that break down dead or decaying organisms; they carry out decomposition, a process possible by only certain kingdoms, such as fungi.

Explanation

Dr. Abdul Salam received Nobel Prize for combining two forces: 

In 1979,  Dr. Abdul Salam won the Nobel Prize for physics.

He was the second Muslim scientist to get Nobel Prize.

Abdus Salam became the first Pakistani to win a Nobel Prize.

Dr. Abdus Salam was Died: Nov. 21, 1996

In 1952  Ph.D. in theoretical physics from the University of Cambridge

Awards

Copley Medal: 1990

Royal Medal: 1978

Hughes Medal: 1964

Pride of Performance: 1958

Nishan-e-Imtiaz

Adams Prize: 1958

Lomonosov Gold Medal: 1983

Atoms for Peace Award

Gold Medal for Outstanding Contributions to Physics: 1981

Smith's Prize for Essay: 1950

Jožef Stefan Medal: 1980

Cristoforo Colombo Prize: 1992

ND5-07-2023

Explanation

The core principle behind a hydrogen bomb is the fusion of light atomic nuclei.

Specifically isotopes of hydrogen (deuterium and tritium), under extremely high temperatures and pressures. 

Explanation

The number of individuals living within that specific location determines the population density

Population density is a measurement of population per unit of land area.

It is mostly applied to humans, but sometimes to other living organisms too

Population density can be used to describe the

• location
• growth
• and migration of many organisms

***

ND1-2-2023

Explanation

All electromagnetic waves travel at the same speed through empty space

Electromagnetic waves are formed between electrical and magnetic fields due to vibrations.

Electromagnetic waves travel with the speed of light in free space.

The speed of light is  3*10^8 m/s

Hence, Electromagnetic waves travel at the speed of 3*10^8 m/s.

Explanation

*********

FIA VU CONSTABLE PAST PAPER 2021

Explanation

When fossil fuels are burned,

they release large amounts of carbon dioxide,

a greenhouse gas, into the air

.ND18-5-2023