In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

In cryptography , a Caesar cipher , also known as Caesar 's cipher , the shift cipher , Caesar 's code or Caesar shift , is one of the simplest and most widely known encryption techniques .
The Caesar Cipher is also known as the shift cipher .

Inert atmospheres consisting of gases such as argon , nitrogen , or helium are commonly used in chemical reaction chambers and in storage containers for oxygen-sensitive or water-sensitive substances , to prevent unwanted reactions of these substances with oxygen or water .
Inert atmospheres of gases such as dinitrogen and argon are routinely used in chemical reactions where air sensitive and water sensitive compounds are handled .

A class action , also known as a class action lawsuit , class suit , or representative action , is a type of lawsuit where one of the parties is a group of people who are represented collectively by a member of that group .

A class action , class suit , or representative action is a type of lawsuit .