Explanation

 Rainbows occur when sunlight is refracted, reflected, and dispersed in water droplets, creating a spectrum of colors.

When light meets a water droplet,

It is refracted at the boundary of air and water, and enters the droplet

Where the light is dispersed into the seven colors

Explanation

Global warming began to accelerate with the advent of the Industrial Revolution, due to increased greenhouse gas emissions.

Since the start of the Industrial Revolution, in about 1750,

Human activities  have increased greenhouse gas concentrations in our atmosphere. such as :

• burning fossil fuels
• including coal and oil
  

Explanation

The first person to use the word geography was Eratosthenes (276–194 BC).

'Geography' derives from the Greek word geographia, literally "Earth-writing",

That is a description or writing about the Earth.

Explanation

احسان دانش کی آپ بیتی "جہانِ دانش" ان کی زندگی کے حالات اور تجربات پر مبنی ہے۔

یہ کتاب ان کی خودنوشت ہے جس میں ان کی مشکلات اور کامیابیاں بیان کی گئی ہیں۔

Explanation

After becoming Governor-General of Pakistan, Quaid-e-Azam Muhammad Ali Jinnah's first official visit was to Britain.

This trip was part of his efforts to establish strong diplomatic relations and seek support for the newly independent country.

His visit to Britain was significant in setting the tone for Pakistan's international relations in its early years.

Explanation

The Delhi Sultan who imposed a tax on Brahmins was Feroz Shah Tughlaq.

He implemented this tax as part of his administrative reforms to increase state revenue.

Explanation

Modal verbs are auxiliary verbs that express necessity, possibility, permission, or ability.

These verbs are used to indicate various shades of meaning related to the main verb.

Examples of modal verbs include:

• Can 
• Could
• May 
• Might
• Must
• Shall 
• Should
• Will 
• Would

Explanation

A picosecond is equal to one trillionth of a second.

In scientific notation, it is 1×10 −12  seconds.

Explanation

The Second Benazir Bhutto government was formed on 19 October 1993  and dissolved on 5 November 1996 by President Farooq Leghari
History:
Farooq Leghari was the eighth president of Pakistan
From 14 November 1993 until resigning on 2 December 1997.
He was the first Baloch to be elected as president.
He started his own Millat party 
In 1996 he dismissed the Benazir Government
Political party: Pakistan Muslim League (Q) (2002–2010)

Explanation

 Korfball is a mixed-gender game with four female and four male players

Gender-balanced team sports focus on cooperation and equal participation between genders.

First played in 1902 by Nico Broekhuysen, a Dutch school teacher from Amsterdam

Olympic: Demonstration sport in 1920 and 1928

World Games: 1985–present