Explanation

Sound travels 4.3 times faster in water than in air.

In water, the particles are much closer together and they can quickly transmit vibration energy and the sound wave travels over four times faster than it would in air.

Explanation

The Sun is the star at the centre of the Solar System.

Explanation

Alternate two series are used, one is an even number and the other is an odd number.

3 + 4 = 7

7 + 4 = 11

2 + 4 = 6

6 + 4 = 10

 ND-21-5-2023

Explanation

Dolly was the world's first cloned sheep.

Dolly was born on 5 July 1996.

Dolly was a female domestic sheep, and the first mammal cloned from an adult somatic cell, using the process of nuclear transfer.

Dolly was cloned by Ian Wilmut.

Explanation

Vitamin A deficiency can cause both loss of appetite and night blindness.

It is also known to increase susceptibility to infections, including those in the throat. 

Night blindness

This is one of the earliest signs of vitamin A deficiency.

It is the inability to see well in low-light conditions, which is caused by the lack of a specific pigment needed for the retina to function properly. 

Loss of appetite

Vitamin A is involved in the health of the receptors for taste and smell.

When vitamin A is deficient, these senses can be altered, which leads to a reduced appetite and difficulty consuming enough nutrients. 

Explanation

The pituitary gland is sometimes called the "master" gland of the endocrine system because it controls the functions of many of the other endocrine glands

Explanation

Deficiency of Iodine causes Goitre disease.

Thyroxine is a hormone that causes Goitre in the human body.

Explanation

• Thyroxine is a hormone which causes Goitre in human body.
  
• Deficiency of Iodine causes Goitre disease.
• Goitre means گلہڑ یعنی گلے وغیرہ کا سوج جانا  
  

Explanation

Sir Isaac Newton was an English mathematician, physicist, astronomer, alchemist, theologian,

Author widely recognised as one of the greatest mathematicians

And physicists of all time and among the most influential scientists. 

Explanation

Magnetite is not a power resource.

Magnetite is a mineral whose primary component is an iron oxide that contains equal amounts of iron(II) and iron(III).

AGM 28.02.28