Explanation

A hydraulic system works on Pascal's principle, which states that pressure applied to a confined fluid is transmitted equally in all directions.

This principle is used in devices like hydraulic lifts and brakes.

Explanation

One day on Venus (one full rotation) takes about 243 Earth days.

Venus takes about 225 Earth days to orbit the Sun, making a day on Venus longer than its year.

So, 1 day on Venus ≈ 1 year on Earth (approximately).

Explanation

Iron rusts when it reacts with oxygen and water in the air, forming iron hydroxide (Fe(OH)₃).

This compound eventually dehydrates to form iron oxide, the reddish-brown rust.

Explanation

SO2 (Sulfur Dioxide) is a toxic gas that, when present in the air.

It can cause lung diseases.

It has been linked to an increased risk of cancer, including stone (kidney) cancer.

It is mainly produced by industrial processes and the burning of fossil fuels.

Explanation

When functioning at its best, the human nose can distinguish between 4,000 and 10,000 different odors.

This range varies by individual sensitivity, genetic factors, and exposure to different smells.

Explanation

Copper is a non-magnetic material, meaning it does not exhibit magnetic properties.

Cobalt, Iron, and Nickel are magnetic materials, as they can be magnetized and attract magnets.

Explanation

Explanation

The dermis is the middle layer of the skin that contains sweat and oil glands, blood vessels, nerve endings, and sensory cells.

It provides strength, elasticity, and nourishment to the skin.

Explanation

Elephants have 56 chromosomes in total, which means 28 pairs.

These chromosomes carry genetic information essential for their growth, reproduction, and survival.

Explanation

Common Ion Effect – NaCl releases Cl⁻ ions, which do not react with H₂S but increase the ionic strength of the solution, reducing H₂S solubility.

Salting-Out Effect – High salt concentration decreases the solubility of gases like H₂S in water by reducing water’s ability to dissolve nonpolar molecules.