Explanation

• An abundant component in Earth's atmosphere is nitrogen, about 78% of the air.
• The second most abundant gas is oxygen, which makes up about 21% of the air.
• Hydrogen and carbon dioxide are both present in the air, but in much smaller amounts than nitrogen and oxygen.

Last verified on 16-05-2026

Explanation

• Vitamin K helps to make various proteins that are needed for blood clotting and the building of bones.
• Prothrombin is a vitamin K-dependent protein directly involved with blood clotting.

• Vitamin C may protect the body against the effects of pollution.
• It may also prevent blood clots and reduce bruising.

Last verified on 31-03-2026

Explanation

• “Dilapidated” means in a state of disrepair or ruin due to neglect or age.
• It fits the context of the factory needing restoration work.

Last verified on 31-03-2026

Explanation

• Electron: Discovered by J. J. Thomson, 1897

Additional information:

• Proton: Discovered by Ernest Rutherford, 1919
• Neutron: Discovered by James Chadwick, 1932
• Atomic Model Proposed: Plum Pudding Model
• Significance: First subatomic particle discovered

Last verified on 16-01-2026

Explanation

Polygot means a person knows many languages.

Polygot means ایسا شخص جو بہت سی زبانوں پر عبور رکھتا ہو

Explanation

A power level of 1 hp is approximately equivalent to 746 watts (W) or 0.746 kilowatts (kW).

Explanation

Explanation

A ∩ (C U B) = (A ∩ B) U (A ∩ C)

Explanation

• A function f from A to B is called an onto function (or surjective function) if its range is equal to the codomain B.
• In other words, every element in B is the image of at least one element in A.
• This means that the function covers all the elements in the codomain B, and no element in B is left out.
• So, the correct answer is B.

Explanation

The letters "SAP" can be arranged in 3! (3 factorial) ways, which is equal to 6 ways:

1. SAP
2. SPA
3. PAS
4. PSA
5. ASP
6. APS

Note that 3! = 3 × 2 × 1 = 6.