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.

Explanation

Saturn is the second-largest planet in the solar system.

Ganymede (Moon of Jupiter) is the largest satellite in the solar system.

Planets and Natural Satellites:

• Mercury: 0
• Venus: 0
• Earth: 1 (Moon)
• Mars: 2 (Deimos, Phobos)
• Jupiter: 95
• Saturn: 274
• Uranus: 27

Explanation

100 grams of cooked mutton (lean, trimmed) provides approximately 153 calories, depending on fat content.

It is a rich source of protein, along with essential vitamins like B12 and minerals like iron.

Explanation

Balancing the equation requires equal atoms of each element on both sides.

Here, 2 molecules of KNO₃ decompose into 2 molecules of KNO₂ and 1 molecule of O₂ gas.

Explanation

Temperature differences across the Earth, due to sunlight angle and duration.

They are a major factor in creating different climates.

These variations influence air pressure, precipitation, and seasonal patterns, shaping climate zones.

Explanation

Order of Planets from the Sun (by distance):

• 1st: Mercury
• 2nd: Venus
• 3rd: Earth
• 4th: Mars

Explanation

Condensation is the process where water vapor in clouds cools down as it moves through colder regions, turning into liquid water (rain) or solid ice (snow).

This process is a key part of the water cycle.

Explanation

Giraffes use infrasonic waves (low-frequency sounds) to communicate over long distances.

These sounds are below the human hearing range.

It help in coordination and alerting others about predators.