Explanation

• The Leaning Tower of Pisa is in Pisa, Italy.
• Located in the Piazza del Duomo (Square of Miracles).

Additional information:

• The height of the tower is 55.86 metres (183 feet 3 inches).
• Construction started: August 9, 1173
• Architect: Bonanno Pisano
• Floors: 8
• Completed: 1372

Last verified on 09-03-2026

Explanation

• Hydrogen and helium are the two lightest gases.
• Helium is the second most abundant element in the universe, after hydrogen.
• Helium has monatomic molecules.
• It is the lightest of all gases except hydrogen.
• Hydrogen is the lightest gas known.
• It provides the maximum lift for balloons due to its very low density.

Last updated question 17-02-2026

Explanation

The SI unit of electric charge is the coulomb, represented by the symbol C.

One coulomb is the amount of charge that passes through a conductor carrying one ampere of current for one second.

It's also equal to the charge of about 6.24 quintillion electrons or protons.

Explanation

Malign means کسی کے بارے میں نقصان دہ یا غلط بیانات بولنے کے لئے

Slander means کسی کے بارے میں نقصان دہ یا غلط بیانات بولنے کے لئے

Explanation

Prevalent means عام

Common means عام

Widespread means عام طور پر واقع ہوتا ہے یا وسیع پیمانے پر قبول کیا جاتا ہے

Explanation

Explanation

The Silk Route is also known as Karakoram Highway

The silk road connects Pakistan and China.

The total length is approximately 1,300 kilometers, of which 887 kilometers are in Pakistan and 413 km in China.

The silk road is considered a symbol of Pakistan-China's eternal friendship

The highway meets the Pakistani-Chinese border at Khunjerab Pass

Explanation

Kinetic energy is the energy an object possesses due to its motion.

The faster the object moves, the more kinetic energy it has.

Explanation

Let's check each option directly for being a sum of two primes:

7 = 2 + 5 (both prime)

19 = 2 + 17 (both prime)

31 = 2 + 29 (both prime)

For 23:

2 + 21 = 23 (21 is not prime)

Explanation

Let's break it down:

Cars washed in 18 minutes = 8

Cars washed per minute = 8 / 18

To find cars washed in 3 hours (180 minutes):

Cars washed in 180 minutes = (8 / 18) * 180

= 8 * 10

= 80