Explanation

The mantle is crucial as it plays a key role in geological processes a such as plate tectonics, which affect earthquakes, volcanoes, and the formation of mountain ranges.

The structure of the earth is divided into four major components:

1. the crust,
2. the mantle,
3. the outer core,
4. the inner core.

Explanation

A sound wave is a form of mechanical energy.

Sound energy is the energy released by an objects vibrations.

Explanation

Penguins are the birds which do not fly but swim to go from one place to another.

Penguins have flippers which help them swim underwater

Penguin means پنکھ دار بحری پرندہ

Explanation

Penicillin was discovered by Alexander Flaming In 1928

Penicillin was the first true antibiotic

The first patient Albert Alexander, a 43-year-old policeman, was treated with penicillin on 12 February 1941

Alexander Flaming determined that penicillin had an antibacterial effect and published his findings in 1929 

Explanation

 A blood pressure reading of 60/90 mmHg is considered low blood pressure (hypotension). 

Explanation

Histology is the study of the tissues

Important GK 

Agrostology: Study of Grasses 

Agronomy: soil management and crop production 

Odontology: study of teeth 

Arthrology:Study of joints 

Nephrology: study of kidneys

Hematology: Study of blood  

Dermatology:  Study of skin 

Explanation

Conching is considered an important step for flavor development in chocolate

The conching results in reduces sweetness and an intense increase of harmonious and mellow taste and chocolate note.

Explanation

There are there following airborne diseases

1.       Measles

2.       TB

3.       Chickenpox

4.       Influenza

5.       Pertussis (whooping cough)

6.       Respiratory Syncytial Virus (RSV)

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Explanation

Leukemia is a cancer of the body's blood-forming tissues.

Including the bone marrow and the lymphatic system.

Some forms of leukemia are more common in children.

Explanation

The stratosphere is rich in Ozone.

The rest of the layers might have ozone to a small extent but not to large extent.