Explanation

 A hydrophone is a microphone designed to be used underwater for recording or listening to underwater sound.

The hydrophones are based on a piezoelectric transducer.

Explanation

Sound needs a medium (like air, water, or solids) to travel because it moves by vibrating particles.

In a vacuum, there are no particles to vibrate, so sound cannot travel and no sound can be heard.

Explanation

MAWKISH (ضرورت سے زیادہ جذباتی) 

Carefree (بے پرواہ، لاپرواہ)

Explanation

 Greedy is similar in meaning to Selfish → both describe someone who wants more for themselves.

Various is similar in meaning to Diverse → both refer to a range of different kinds.

Explanation

Lately – حال ہی میں، کچھ عرصہ پہلے

Recently (حال ہی میں، تازہ تازہ)

Explanation

Explanation

A mosquito produces a high-frequency sound, while a lion produces a low-frequency roar.

The difference in frequency is what makes their sounds so distinct to our ears.

Higher frequencies sound more like buzzing or whines, while lower frequencies sound deeper and more powerful.

Explanation

• $172÷5=34.4$ (approximate, doesn't fit exactly)

• $172-138=34$

• $34+6=40$

• $40-22=18$

Observing the sequence, there may be an alternating pattern of subtraction and addition:

• $172 - 138 = 34$

• $34+6=40$

• $40-22=18$

• $18 + 2 = 10$

Explanation

Sin (گناہ)
Vice  برائی یا بدکرداری، جو عادت کے طور پر اپنائی جا سکتی ہے اور نقصان دہ ہوتی ہے۔

Explanation

Tuzk-e-Babri, was written initially by Emperor Babur in Chagatai Turkic, which he referred to as "Turki"

Tuzuk-i-Baburi is written by Babur.

Babarnama is also known as Tuzuk-i-Baburi.

Babur and Jahangir are the only two emperors of Mughal Empire who wrote their own biographies.