Explanation

Refrigerators are cooled through the evaporation of a volatile liquid that is,

they use a liquid that evaporates very easily,

and this evaporation creates a cooling effect.

Explanation

 vitamin B12 found in

Fish and shellfish such as trout, salmon, tuna fish, and clams.

Fortified breakfast cereal.

Low-fat milk, yogurt, and cheese.

Eggs.

Explanation

Triglycerides are a type of fat (lipid) found in our blood.

They are the most common type of fat in your body.

Triglycerides come from:

foods, especially butter, oils, and other fats you eat

Lipids are an umbrella term for Triglycerides, Phospholipids and Sterol.

Explanation

All plants move Anticlockwise around Sun

All plants move anticlockwise around their axis.

Earth rotates its axis from West to East

The rotation of the Earth gives the day and night

Explanation

Light from Sun travels a distance of  150 Million km before it reaches Earth

Explanation

The stratosphere is a layer of Earth's atmosphere. It is the second layer of the atmosphere as you go upward. It is present about 30miles (50km) in atmosphere above earth.

Explanation

Hydrogen and helium, the lightest two gases,

Hydrogen is a chemical element

It is colorless, odorless, tasteless, non-toxic, and highly combustible. 

Symbol: H

Atomic mass: 1.00784 u

Atomic number: 1

Atomic mass : zero

Boiling point: -252.9 °C

Discoverer: Henry Cavendish

Explanation

Atom bomb is based on the principle of nuclear fission.

 uncontrolled nuclear fission is the principle for an atom bomb.

Explanation

Pneumonia is an infection that inflames the air sacs in one or both lungs.

The air sacs may fill with fluid or pus (purulent material), causing cough with phlegm or pus, fever, chills, and difficulty breathing.

Explanation

The Nutrient Cycle is the most natural event in the context of nutrient cycling.

It refers to the continuous process by which nutrients are exchanged between the environment, plants, and animals.

This process includes various events such as primary production, decomposition, and nutrient uptake.