Explanation

Explanation

• Samarkand is located in Uzbekistan 
• Region: Central Asia.
• The region borders Tajikistan.
• Situated in the Zerafshan River valley
• The third-largest city in Uzbekistan.
• The city was named Marakanda when captured by Alexander the Great in 329 BC

********
Last updated by NA on 22-April-2026

Explanation

• Omnivores are animals that eat both plants and animals.
• They have adaptations that allow them to digest and extract nutrients from a wide variety of food sources, including fruits, leaves, insects, small animals, and even carrion.
• Examples of omnivores include humans, bears, pigs, chimpanzees, and raccoons.

Explanation

Long Walk to Freedom is the autobiography of Nelson Mandela

Published in 1994,

Additional information
Nelson Mandela was the first black president of South Africa.

Nelson Mandela died on 5 December 2013.

Explanation

Warsak Dam is located on the Kabul River in the Valley of Peshawar

Warsak Dam is built on the Kabul river

Construction began 1949

it was Opened in 1960

the Height of dam is 76 m

Its length is 140.2 m (460 ft)

Warsak Dam was completed under the Colombo Plan in two phases 

it was financed by the Canadian Government. 

Explanation

Explanation

To find the required speed, we first calculate the distance covered by the train:

$$text{Distance} = text{Speed} times text{Time} = 45 , text{km/h} times 5 , text{hours} = 225 , text{km}$$

Now, to cover this 225 km in 3 hours, the required speed is:

$$$$Speed=Distance/Time=225 km/3 hours=75 km/h

Explanation

Explanation

Solar cells, also known as photovoltaic cells, convert solar energy (sunlight) directly into electrical energy.

They work by using semiconductor materials to absorb photons from sunlight and release electrons, generating electricity.

Explanation

Helium  and Argon is a noble gas, part of Group 18 in the periodic table.

Helium (He)

The lightest noble gas, helium is used in hot air balloons and airships.

It's also used in air containers for deep-sea divers.

Argon (Ar)

Argon makes up 0.93% of the Earth's atmosphere.

It can be prepared by fractional distillation of liquid air.