Questions

The Buddh International Circuit, an Indian motor racing circuit, is located in Greater Noida.

A RNA copy of a DNA gene is called as messenger RNA or mRNA. mRna is used in translation because information is translated from one language (nucleotides) into another (amino acids).

Hence, mRNA is used to transfer genetic information by a cell.

The followers of Islam religion is called Muslims.

According to Muslims, God sent prophets to mankind to teach them how to live according to His law. Muhammad is believed by Muslims to be the last prophet sent by God (Allah). The Muslim holy book is called the Quran.

Wind and solar energy are examples of Renewable energies. 

Renewable energy sources are those which can be naturally replenished. 

Sales promotion uses both media and non-media marketing communications for a pre-determined, limited time to increase consumer demand, stimulate market demand or improve product availability.

Sales promotions include Coupons, Rebates, Free Samples, etc... Online Ads come under advertising form.

The Riddle itself has the Answers.

What is a 4 letter word

Yet is written in 3 letters

Everything is written with 9 letters

Then with 4 letters

Rarely has 6 letters

Never is written in 5 letters.