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Explanation

Red phosphorus is the form of phosphorus used in safety matches.

It's found on the striking surface of the matchbox, not in the match head itself.

This design separation prevents the match from spontaneously igniting. 

Explanation

Iyad bin Amin Madani is a Saudi politician who served in different cabinet posts.

He was the Secretary General of the Organisation of Islamic Cooperation from 2014 to November 2016.

He was the first Saudi official to hold that position.

Explanation

The August Offer was made by Viceroy Lord Linlithgow in 1940

It an attempt to secure Indian support for the British war effort during World War II

It did not offer complete independence or resolve Hindu-Muslim differences — hence, option (a) is correct.

Explanation

The All India Muslim League rejected the Wavell Plan of 1945

Because it did not grant the League exclusive rights to nominate all Muslim members to the Executive Council

Explanation

 Copper was first used by man over 10,000 years ago

The period following the use of copper is sometimes referred to as the Copper Age or Chalcolithic Age. 

Explanation

Gandhi-Irwin Pact, agreement signed on March 5, 1931

Between Mohandas K. Gandhi, leader of the Indian nationalist movement

Lord Irwin (later Lord Halifax), British viceroy (1926–31) of India

Participants: Mahatma Gandhi, George Montagu 

Date: March 5, 1931

Location: India

Explanation

 Landi Kotal is the main shopping centre for the Shalmani, Shinwari, Afridi, and Mulagori tribes of Khyber Agency.

Explanation

Hydrogen and helium are the two lightest gases, both significantly lighter than air. 

Hydrogen: Considered the lightest gas.

Helium: Also lighter than air, but twice as heavy as hydrogen.

Air: Has a higher molecular weight than both hydrogen and helium. 

Explanation

 The Nobel Peace Prize has seen the largest number of women laureates compared to other Nobel Prize categories.

The Peace Prize has been awarded to women 17 times,

• Literature has seen 14
• Medicine 12
• Chemistry 5
• Physics 3
• Economics 1

Explanation

 Renaissance is the French word for 'rebirth'.

The Renaissance was a period in European history that led to a revival in classical learning and wisdom.