Mr. Turner’s 9th grade class is going to start a campaign to prevent pollution. Below are four activity ideas that have been suggested to the group. Which one should they choose? 1. Create a video showing families how to reduce their household water use.
2. Create a plan showing how the city can use water more efficiently.
3. Create a brochure that educates people about groundwater overuse.
4. Create a video showing factories how to use cooling ponds and towers.

The answer is 4. Create a video showing factories how to use cooling ponds and towers.

Explanation:

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the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.