setbook unit 10.with answers

1- What should an astronomer own ?
An astronomer should own a telescope .

2- How did people use to navigate through the desert ?
They used to navigate by the stars .

3- What is a compass used for ?
For showing the directions.

4- What is a manuscript ?
It is a book or a document written by hand .

5- How can we help the environment ?
By reusing and recycling paper and plastic .

6- How can we save energy ?
By turning the lights off when we are out .

7- How can we save water ?
By turning the taps off when we don't need them .

8- Mention two materials can be recycled .
a- paper b- plastic