Choose the letter of the correct answer. Encircle the correct letter.
1. Magnets can attract almost all things made of _________.
a. plastic b. metals c. wood
2. The discovery of the magnet led to many _______.
a. inventions b. revolutions c. problems
3. Magnets made possible the inventions of the________.
a. compass b. computer c. camera
4. Pilots, sailors, boy scouts, soldiers and engineers depend much on________.
a. compass b. electricity c. motors
5. Magnets also make use of___________.
a. electricity b. gas c. water power
6. Electric and industrial motor became possible after the discovery of___________.
a. electricity b. magnets c. water power
7. Compass is most useful to___________.
a. farmers b. teachers c. travellers
8. Motors make use of _________.
a. magnets b. plastic c. wood
9. These days, magnets___________.
a. are no longer used b. are still being used c. has been replaced
10. Compass ________________ too
a. are no longer being used b. are still being used c. has been replaced.