Many state and local authorities are requiring cars to have their emissions tested each year. why would lawmakers need to consult with scientists and mechanics before making these laws?

This is one of the five kingdoms in the older biological succession. organisms in this kingdom are prokaryotic

Solutions to environmental problems in europe must

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !