How are radioactive isotopes used to determine the absolute age of igneous rock? name two radiometric methods that are used.

Match the types of competition to their descriptions

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 !

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?