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

 a noun phrase has a noun as its Head. Determiners and adjective phrases usually constitute the pre-Head string:

[NP the children]

[NP happy children]

Explanation

The ozone layer protects living things from too much ultraviolet  from entering the atomsphere

Oxygen layer in the atmosphere

Ozone protects us from the harmful ultraviolet radiation of the sun.

Ozone formula: O3

The ozone layer lies approximately 15-40 kilometers (10-25 miles) above the Earth's surface, in the stratosphere.

The ozone layer is depleting: Air pollution

Explanation

Alt+Ctrl+F to insert a footnote

Alt+Ctrl+D to insert an endnote

Explanation

"Iblees Ki Majlis-e-Shura"  is an Urdu poem written by Muhammad Iqbal in 1935

The poem is written as a meeting between:

Iblees (the first of the Devils, or Satans in Islam)

and his five advisers. 

Explanation