Explanation

In passive voice, the object (my work) becomes the subject, and the verb changes accordingly:

Active voice: I shall do my work myself.

Passive voice: My work shall be done by me.

Rule for future simple tense: Shall/will + be + past participle (done) is used to form the passive structure.

Explanation

Indigenous means سودیشی

Native means مقامی

Explanation

Alliteration is a literary device in which words that start with the same sound or letter are repeated in close proximity to each other, typically in a phrase or sentence.

Examples include "sweet silver slippers" or "fluffy friendly felines".

Explanation

Pakistan is located in the north-western part of the South Asian subcontinent.

It shares borders with India (east), Afghanistan and Iran (west), China (north), and the Arabian Sea (south).

Explanation

Ignoring disrespectful behavior can sometimes be the best approach, especially if the student is seeking attention through negative actions.

Maintaining professionalism and not reacting emotionally helps in handling the situation maturely, rather than escalating it.

Explanation

A glucoside bond (glycosidic bond) is a type of covalent bond that links sugar molecules in disaccharides and polysaccharides.

Lactose, a disaccharide, consists of glucose and galactose joined by a β-1,4-glycosidic bond.

Explanation

Speed of light in air (or vacuum) is approximately 3 × 10⁸ m/s (299,792,458 m/s), which is the fastest speed possible in nature.

Light slows down in denser mediums like water or glass due to interactions with particles, but in air, it remains very close to its speed in a vacuum.

Explanation

NH₄Cl (Ammonium chloride) contains three types of chemical bonds:

• Covalent bond → Between N (Nitrogen) and H (Hydrogen) in the NH₄⁺ (Ammonium ion).
• Coordinate (Dative) bond → Between N and one of the H atoms, where nitrogen donates a lone pair.
• Ionic bond → Between NH₄⁺ (Ammonium ion) and Cl⁻ (Chloride ion).

Explanation

Given k = 15:

(k-2) = 15 - 2

= 13

Now, calculate 180/k:

180/k = 180/15

= 12

Multiply (k-2) by 12:

13 × 12 = 156

Explanation

To find the ratio between their ages, we need to convert their ages to a common unit (months):
Ashraf's age:
15 years × 12 months/year = 180 months

- 10 months = 190 months

Akmal's age:
17 years × 12 months/year = 204 months

- 5 months = 209 months

Now, find the ratio:
Ashraf's age : Akmal's age = 190 : 209
Simplify the ratio:
190 ÷ 19 = 10
209 ÷ 19 = 11
So, the ratio is:
10 : 11