Explanation

The heart is part of the circulatory system, not the digestive system.

The stomach, small intestine, and large intestine are all key parts of the digestive system.

Explanation

Non-electrolytes are substances that do not dissociate into ions in solution, so they do not conduct electricity.

Examples include sugar and pure water.

Explanation

An electric field does work on a charge, causing it to gain or lose energy (kinetic or potential).

A magnetic field can change the direction of a moving charge.

Explanation

A covalent bond is formed when two atoms share electrons to achieve stability.

It commonly occurs between non-metal atoms, like in H₂O or CO₂.

Explanation

Rock salt is the natural mineral form of sodium chloride (NaCl).

It is commonly used for de-icing roads and in cooking as table salt.

Explanation

Gauss → Unit of magnetic induction (CGS system)

Tesla → SI unit of magnetic induction

Weber/Ampere·meter → This is a unit of magnetic permeability, not magnetic induction

Explanation

Antibodies are proteins produced by the immune system to neutralize or destroy antigens (disease-causing agents).

They are a key part of the body’s defense mechanism against pathogens like bacteria and viruses.

Explanation

Melting of ice changes only the state from solid to liquid.

No new substance is formed, so it's a physical and reversible change.

Explanation

Explanation

Pesticides are chemicals used to kill or repel insects that damage plants and crops.

They help protect agricultural yield by controlling pest populations.