Explanation

Sound waves are characterized by amplitude (loudness), wavelength (distance between wave peaks), and frequency (pitch).

These parameters help describe how sound behaves and is perceived.

Explanation

Present continuous active voice ("are repairing") changes to "is being repaired" in passive voice.

The subject (they) becomes the agent in the passive sentence.

Explanation

Pragmatic means practical and focused on results or real-world applications.

Such students choose courses based on usefulness and immediate benefit.

Explanation

For the multiplication of two matrices A (size m x p) and B (size p x n), the resulting matrix AB will have dimensions m x n.

The number of rows of A and the number of columns of B determine the dimensions of the product matrix.

Explanation

Present continuous uses "is/are/am + verb-ing" (e.g., "She is sleeping").

"She is sleeps" is incorrect because "sleeps" is not in -ing form.

Explanation

حروف قلقلہ کی تعداد 5 ہے۔

یہ پانچ حروف ہیں:

ق، ط، ب، ج، د

یہ حروف قرآن کی تلاوت میں خاص طریقے سے ادا کیے جاتے ہیں تاکہ آواز میں لرزش (قلقلہ) پیدا ہو۔

Explanation

"Beware" is an imperative verb used to give a warning or command.

It means "be cautious" or "be on guard", making it a verb in this sentence.

Explanation

في المصيف يكون الطل خليفاً

اس کا مطلب ہے: گرمیوں میں شبنم خنکی کا متبادل ہوتی ہے۔

Explanation

Development refers to the progressive changes in a person due to both maturation (natural growth) and experience (learning).

It includes physical, emotional, social, and cognitive changes over time.

Explanation

The Pakistan Republican Party was formed in 1955 by Iskander Mirza, the then Governor General.

It was created to counter the Muslim League and support the One Unit Scheme and centralized authority.