Hello steemit users hope you are having a good day. This is me Hashir Alam. And I am here for my Achievement 3 assigned by @cryptokannon. So lets get started

Plagiarism:

Plagiarism simply means cheating. If you are copying someone's work without asking permission or without giving credit to the real author. It must be considered as Plagiarism.
Steemit is a Block chain which allow users to post their work. And it us highly against Plagiarism.

Source

How to Cite a Source:

Citation is really important because sometimes while writing a post we need some source from internet. This may be a paragraph or an image. So to do this we have to give proper link of that thing which we are using in our post.
Every copy/pasted sentence should be either in quotes “"or formatted using the > markup.
Source

Example of Citation:

There is a Cricket named Shaid Afridi. I am coping his background form internet source. With proper citation.
Shahid Afridi’s international career began when he was selected for the 1996-97 Sameer Cup as a leg spinner, replacing the injured Mushtaq Ahmed. He batted as a pinch-hitter at number three in his first few matches.

"As a player, Afridi has represented several clubs. Other than playing for the Pakistan, Afridi played for the Deccan Chargers, Dhaka Gladiators, Fly Emirates XI, Griqualand West, Habib Bank Limited, Hampshire, ICC World XI, Karachi, Karachi Region Blues, Kowloon Cantons, Leicestershire, Melbourne Renegades, Northamptonshire, Peshawar Zalmi, Rangpur Riders, Ruhuna Royals, South Australia, St Kitts and Nevis Patriots."
SOURCE
In this way you can copy paragraph for images you can use

~ https://shutterstock.com
~ https://pexels.com
~ https://unsplash.com
This was my Achievement 3. Hope you guys liked it. Thank you.
Achievement 1
Achievement 2
Special Mentions:
@cryptokannon
@hassanabid