Sound travels fastest through solids like steel due to closely packed molecules.

A symmetric matrix is one that is equal to its transpose. Matrix B is symmetric because B = B^T.

Gold is known to be the least reactive metal, making it resistant to corrosion and oxidation.

Gold is known to be the most malleable metal, capable of being drawn into extremely thin sheets.

Silver is the best conductor of electricity among metals due to its high electron mobility.

Copper is widely used in electrical wiring due to its excellent conductivity.

Sodium reacts vigorously with water to produce sodium hydroxide and hydrogen gas.

Chlorine is a non-metal that exists as a gas at room temperature.

Nitrogen is a key component of DNA, forming part of the nucleotides that make up the genetic code.

25 is a perfect square (5^2).

Substituting x = 1 into the equation gives y = 1^2 - 4 = -3, so the point (1, -3) lies on the parabola.

DNA replication occurs in the nucleus, where the cell's genetic material is housed.

The Right to Property was originally a Fundamental Right but is now a legal right; however, the other rights mentioned are available to all persons.

The Kosi River is known as the 'Sorrow of Bihar' due to its frequent flooding.

The Nile River is traditionally considered the longest river in the world, measuring about 6,650 kilometers.

Ayushman Bharat is aimed at providing health insurance to the poor, covering hospitalization costs.

The Post Matric Scholarship Scheme is designed to provide financial assistance to students from Scheduled Castes and Scheduled Tribes.

The function f(x) = 1/(x-3) is not defined at x = 3, hence it is not continuous at that point.

The function f(x) = |x| is continuous everywhere, including at x = 0.

Time zones can vary in width due to political and geographical reasons, not strictly based on longitude.

Assam is known for its extensive tea production.

Both liquids and gases can flow due to the freedom of movement of their particles.

The nucleolus, located within the nucleus, is responsible for synthesizing ribosomal RNA.

The kidneys filter blood to remove waste and excess substances, producing urine.

The pancreas produces insulin, which helps regulate blood sugar levels in the body.

The nucleolus is responsible for synthesizing ribosomal RNA (rRNA) and assembling ribosomes.

Mitochondria are known as the powerhouse of the cell, where ATP is produced through cellular respiration.

An adverb can describe the manner of an action, answering questions like how, when, where, and to what extent.

An interrogative pronoun is used to ask questions.

An adjective is used to describe or modify a noun or pronoun.