TOEFL Grammar: Prepositions Multiple Choice

In the following text, are the prepositions in CAPITALS in the sentences correct or incorrect?

1. The breeding IN tropical fish

correct

incorrect

2. Is probably the most rewarding part OF fish keeping

correct

incorrect

3. and ABOUT which many books have been written.

correct

incorrect

4. The breeding habits ABOUT fish are many and varied.

correct

incorrect

5. They can be live-bearers, that is they give birth OF live fish or they can be egg-layers.

correct

incorrect

6. For the live-bearers the number of fish born can vary from ten AT a hundred.

correct

incorrect

7. The novice aquarist has visions of his tank becoming densely populated OF a very short time.

correct

incorrect

8. However the young fish make excellent food and are quickly consumed, often BY their parents.

correct

incorrect

9. An apparatus designed to protect the young fish can be purchased and is known AS a breeding trap.

correct

incorrect

10. It usually consists FROM a small plastic container and is clipped to the inside of the tank.

correct

incorrect