To check if a point lies on the parabola, substitute the x-coordinate into the equation. For (2, 4), 4^2 = 16 and 8*2 = 16, so it lies on the parabola.

Photosynthesis occurs in chloroplasts, where light energy is converted into chemical energy in the form of glucose.

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

The polar form of a complex number r(cos θ + i sin θ) where r is the modulus and θ is the argument. Here, 4 = 4(cos 0 + i sin 0).

(a + b + c)² = a² + b² + c² + 2ab + 2bc + 2ca.

The Right to Constitutional Remedies is available only to citizens of India as per Article 32.

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 Right to Freedom of Speech is considered a negative right as it requires the state to refrain from interference.

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.

The Indus River is the longest river in India, flowing for about 3,180 kilometers.

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

The Skill India initiative aims to provide skill development and enhance the employability of the youth in India.

The Skill India initiative aims to provide skill development training to the youth of India to enhance their employability.

The Skill India Mission is aimed at providing skill development and enhancing employability for the youth.

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

Gases fill the entire volume of their container due to the high kinetic energy of their particles, allowing them to spread out.

The function f(x) = 1/(x-1) is not continuous at x = 1 because it is undefined there.

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.

Variance is always non-negative as it is calculated as the average of squared deviations from the mean.

The function f(x) = 1/(x-3) is discontinuous at x = 3 because it is undefined at that point.

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

The International Date Line is approximately at 180° longitude, is not a straight line, and is not recognized by all countries.

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

Rajasthan is known for its desert, particularly the Thar Desert.

Assam is known for its extensive tea production.

Assam is the largest producer of tea in India.

All states of matter can conduct electricity under certain conditions, but liquids and solids are more common conductors.

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