Explanation

LPG (Liquefied Petroleum Gas) mainly consists of hydrocarbons like propane and butane.

These are gases composed of hydrogen and carbon atoms.

It is used as fuel for cooking and heating.

Explanation

• The asteroid belt is a region of space where many small rocky bodies, called asteroids, orbit the Sun.
• It's also known as planetoids or minor planets.
• It is located between the orbits of Mars and Jupiter, spanning from about 2.2 to 3.2 astronomical units (AU) from the Sun.

Explanation

Bilirubin is produced during the breakdown of red blood cells (RBCs).

Specifically, it is formed from the breakdown of hemoglobin in RBCs after they are destroyed by the liver and spleen.

Explanation

Tuberculosis (TB) is primarily treated with a combination of antibiotics, which is a form of chemotherapy.

The treatment usually involves a prolonged course of multiple antibiotics to eliminate the bacteria.

Explanation

A balanced diet provides all essential nutrients in the right proportions for proper growth and health.

It is important for both children and adults to maintain overall well-being.

Explanation

The midbrain controls the reflex actions of the eye, including the adjustment of the pupil size in response to light.

This function helps regulate the amount of light entering the eye to protect the retina and maintain clear vision.

Explanation

Scuba tanks contain a mixture of nitrogen (N₂) and oxygen (O₂), commonly called compressed air or nitrox.

Nitrogen prevents oxygen toxicity at high pressures, which can occur in deep-sea diving.

Explanation

A typical animal cell contains a central nucleus.

Whereas a plant cell has a cell wall and a large central vacuole.

Animal cells lack a cellulosic cell wall and large central vacuole, which are found in plant cells.

Explanation

An odometer measures the total distance a vehicle has traveled.

It is usually located on the dashboard near the speedometer.

Explanation

The cell membrane of cardiac muscle cells maintains an electrochemical gradient of sodium (Na⁺), potassium (K⁺), and calcium (Ca²⁺) ions.

These ions are crucial for generating and transmitting electrical impulses that cause heart contractions.