Mohammadian-Task+5-Chapter2-page94

Expand three of the following statements, making them more informative by replacing tha noun phrase with one or more verb phrases.
1. Bacteria found in meat can be killed by radiation. Bacteria found in meat can be killed by sending out some energy as electromagnetic waves or subatomic particles.

2. Possible harmful effects of drugs can be reduced by tests. Possible harmful effects of drug can be reduced by doing some regular examination of the people's performance.

3.One class of rocks is formed by sedimentation. One class of rocks is formed by the process of depositing the solid material that settles at the bottom of a lake or river,etc.