The answer is b wind energy
Explanation:
To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.
Fungi has a cell wall, no chlorophyll in the cells (unlike plants), is multicellular, and eukaryotic
