Explanation

• Sound waves are mechanical waves and need a medium to travel.
  • They travel fastest in solids, slower in liquids, and slowest in gases.
  • Solid particles are closely packed, allowing rapid vibration transfer.

Last verified on 04-02-2026

Explanation

The given series is a square of natural number

(1)^2 = 1

(2)^2 = 4

(3)^2 =9

(4)^2 = 16

(5)^2 = 25

Explanation

• First Ghazwa (Battle) took place between Muslims and Kuffar is Ghazwat Abwa.
• Ghazwa Abwa is the First Ghazwa of Islam.
• Ghazwa Wadan is another name for this battle.
• Abwa is the first expedition, in which the Holy Prophet (PBUH), with 60 Muhajireen, left Madinah with the goal of jihad for the first time in the month of Safar 2 AH.
  

Explanation

Explanation

Explanation

Explanation

Nigeria is a west African country. 

Nigeria got Independence from the great Britain on October 1st, 1960.

 Abuja is the capital while the Naira is the currency of Nigeria. 

More than 500 languages are spoken in Nigeria.

According to a report released in 2018, Nigeria is the third most affected country in the world after Iraq and Afghanistan.

Explanation

• The Battle of Uhud occurred on Saturday, 23 March 625 AD (3 Hijri) in the valley north of Mount Uhud.
• Prophet Muhammad (PBUH) led around 1000 Muslims in the Battle of Uhud.
• They faced 3000 Qurayshi Meccans commanded by Abu Sufyan ibn Harb.
• Abdullah bin Jubair was appointed by Prophet Muhammad (PBUH) to lead the 50 skilled archers positioned on Uhud Mountain.

Explanation

A Steam Turbine is a mechanical device that extracts thermal energy from pressurized steam and transforms it into mechanical work.

Explanation

The red one is positive (+), the black one is negative (-).

Never connect the red cable to the negative battery terminal or a vehicle with a dead battery