Which types of questions can mostly be answered through a scientific investigation

Why did the federal government end its support of yucca mountain as a site for long-term storage of nuclear water

Why are current extinctions of concern to enviromentalists?

The source of energy shown in the image is (renewable, non renewable, polluting) a drawback of building a dam is that (it will destroy ecosystems, it requires fossil fuels, it won’t be useful for irrigation)