What are three types of radioactive decay

Seed plants that lived during the carboniferous impact life on earth today because a. they are the ancestors of all plant life on earth. b. their remains formed coal, which is an important resource. c. they produced fossils that are used to date many geologic events. d. their presence caused oxygen levels to drop, allowing animals to evolve.

Does water only take one path through the water cycle? (15 points)

Which measure of humidity, relative humidity or dew point, best describes the actual quantity of water vapor in a mass of air