Answer:
Major or minor I can be, when you touch me make sure you that you’re on the right key.
Without coolant, you'll have some trouble with this.
In the sun it likes to play; In the rain it goes away; Walk or run it always follows; In the mud it always wallows.
These are needed to finish a test
An image taken from real life
It is something you will never see again.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?