Explanation

Infectious diseases are caused by pathogens.

Pathogens of all classes must have mechanisms for entering their host and for evading immediate destruction by the host immune system.

Explanation

Cyclones are usually accompanied by high rainfall.

heavy showers mean: A period of heavy rain

Cyclones mean  ایک قسم کی طوفان

heavy showers  زیادہ بارش/  بھاری بارش

Explanation

Artificial intelligence is intelligence demonstrated by machines, as opposed to natural intelligence displayed by animals including humans.

This is used in 5th generation computers

Explanation

Soil pollution is primarily caused by acid rain.

Acid rain contains pollutants like sulfuric and nitric acids, which can degrade soil quality by altering its pH and harming plant life.

Explanation

The bar is a metric unit of pressure, but not part of the International System of Units (SI).

Bar is defined as 100,000 Pa (100 kPa)

Explanation

Combustion is when fuel reacts with oxygen to produce heat.

Chemical reactions that produce heat we call exothermic reactions.

Most vehicles use an engine to convert heat energy into mechanical energy.

 Mechanical energy gets transferred to the vehicle's moving parts, like wheels or propellers.

Explanation

Hypocenter is the point beneath the Earth’s surface where the vibrations of an earthquake originates and which corresponds to the location where the motion on a fault surface starts.

Explanation

In general, the cancer in a human body is caused by changes to DNA.

DNA stands for Deoxyribonucleic acid

Explanation

John McCarthy is recognized as the father of Artificial Intelligence due to his astounding contribution in the field of Computer Science.

John McCarthy was an American computer scientist

Note: Artificial Intelligence is a branch of Computer science, which aims to create intelligent machines so that machine can think intelligently in the same manner as a human does.