Science

Science
answer question short answers sentence for each question

1. What gases are considered air pollutants? List at least 4. What is the source of each of the gasses mentioned? What methods have been used to try to reduce these pollutants?

2. What specific pollutants can contaminate water, especial in urban areas. Name at least four water pollutants. Include the pollutant that still contaminates some water in Flint, Michigan. Which agency makes regulations to keep water quality high in the US?

3. Describe the location and types of both energy and mineral resources. Include the extraction process of each and the environmental imparts involved with their use. Mention at least two energy resources and two mineral resources.
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23.
Physics

Two cars leave with time gap of 1 minute from the same point.They move with an acceleration of 0.2 m/s2.How long after the departure of the second car,does the distance between them become equal to three times its value,when the second car just starts?
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