If your backpack is not like anyone else's, it means it is:

A decayed mixture of plants is called:

If you make something new from something that has been used before you:

Dry twigs or sticks used to start a fire is called:

Making land, water, air, etc. dirty and not safe to use is called:

Animals that are rare and at risk to die out completely are called:

If you view a collection of objects put on display in a public place for others to see, you are seeing a (an):

If you have a book with blank pages where you can put a collection of photos, stamps, sports cards, etc.

If you have a special book that has information and pictures about many different subjects, you might have a (an):

If you refuse to change your ideas, you might be called:

If you gently elbowed a person to get their attention, it is called: