Explanation

Arachnophobia is the fear of spiders.

آراکنو فوبیا مکڑیوں کا خوف ہے۔

It is one of the most common specific phobias.

Where individuals experience intense fear or anxiety when encountering spiders.

Explanation

Quarks are the smallest known particles in the universe.

They are the building blocks of protons and neutrons, which make up atomic nuclei.

They were discovered in the 1960s. 

They are considered the most fundamental units of matter.

Explanation

Electrolysis, which uses electricity as a catalyst, is the process of separating water (H2O) into oxygen (O2) and hydrogen (H2).

When an electric current is passed through water, it causes the water molecules to split into their component gases.

Explanation

Electric engines are considered the most efficient.

Because they convert more energy from the battery into usable power compared to internal combustion engines like petrol and diesel.

It is lose a significant amount of energy as heat.

Explanation

Organisms encode their genes in long strands of DNA.

It contains the instructions for the development, growth, and function of an organism.

DNA is made up of nucleotides, each consisting of a sugar molecule, a phosphate group, and a nitrogenous base.

Explanation

Jupiter is primarily a ball of gases.

It is composed mainly of hydrogen and helium.

It is the largest planet in our solar system.

It has lacks a solid surface like Earth.

Explanation

A stethoscope is a medical device used to listen to the sounds of the heart, lungs, and other internal organs.

It is a vital tool for healthcare professionals to diagnose and monitor various medical conditions.

Such as heart murmurs, respiratory problems, and digestive issues.

Explanation

Aviary refers to birds, specifically a collection of birds or a place where birds are kept, such as a bird sanctuary or a large cage for birds.

Apiary refers to butterflies, specifically a place where butterflies are kept or a collection of butterflies.

Explanation

An average-sized horse can live to be between 25 and 30 years old.

Smaller horse breeds tend to live slightly longer, closer to 40 years.

On the other hand, larger horses live shorter lives, closer to 20 years.

Explanation

Penguins are flightless birds characterized by their flippers, which help them swim.

They belong to the class Aves and are native to the Southern Hemisphere.