Study the word list: mixed up

User created list

necessary	I will be happier with this project when I have finished all necessary modifications. *
difficult	The conversion from Dollars to Yen was difficult to make.
expensive	The games console was rather expensive. *
pollution	Air pollution is bad in many cities.
environment	The natural world around us is our environment. *
extremely	This cloth is extremely absorbent.
nourishment	A plant needs the correct nourishment to grow.
concentrate	It was hard to concentrate with the music playing in the room.
Australian	The Australian Dingo is a wild dog.
devious	She was a very devious person.
aghast	I'm so aghast at how food prices have risen.
conscious	She was conscious of what she said to her mother.
through	He put his arms through the lifebelt.
thought	I thought you'd be ready by now.
though	Even though it's winter the weather is not cold.
professional	I think I will get a professional decorator to paint the house. *
appearance	She had a strange appearance.
video	He broke the world-record and had a video as proof.
Saturday	Jack goes to the pub every Saturday.
surrounded	The army surrounded the rebels.