Explanation

The number of bioelements considered vital for life is 16. These essential elements include:

1. Carbon (C)
2. Hydrogen (H)
3. Oxygen (O)
4. Nitrogen (N)
5. Phosphorus (P)
6. Sulfur (S)
7. Potassium (K)
8. Calcium (Ca)
9. Magnesium (Mg)
10. Iron (Fe)
11. Sodium (Na)
12. Chlorine (Cl)
13. Copper (Cu)
14. Zinc (Zn)
15. Manganese (Mn)
16. Iodine (I)

Explanation

His father is writing a book. (Present continuous tense)

 If the action is a regular or habitual activity

 Is writing – if it’s happening right now 

Explanation

 Torque is the rotational analog of force and equals the rate of change of angular momentum.

Explanation

Hysterically means with uncontrolled extreme emotion, especially fear or panic.

Wildly means a lack of control in emotion or behavior.

Explanation

In the story featuring Mr. Jorkens (a character from Lord Dunsany's tales),

Terbut is the one who disagrees with Jorkens’ views on determination.

Their discussion at the club revolves around whether success comes more from determination or from opportunity.

Explanation

In the novel "Goodbye, Mr. Chips" by James Hilton,
Mr. Chips becomes a teacher at the fictional English public (boarding) school called Brookfield.

Explanation

 The meeting was held in the conference room.

یہ ملاقات کانفرنس روم میں ہوئی۔

Use “in” when something happens inside an enclosed space, like a room, hall, or building.

Explanation

Energy density is defined as energy per unit volume, so the SI unit is joules per cubic meter (J/m³).

It applies to electric fields where

𝑢 = 1/2𝜀𝐸², with 𝑢 being energy density.

Explanation

We use “on” with days and dates (e.g., on Monday, on Friday, on July 5).
This sentence refers to a specific day, so:  “On Friday” is correct.

Explanation

Honesty never goes to waste.

The subject "Honesty" is singular and uncountable,

And the sentence is in the present simple tense, expressing a universal truth or general fact.

In present simple tense: Singular subject → verb + s/es