The question does not make sense please type in comments and tell me
Heat from the Sun causes water to evaporate from the surface of lakes and oceans. This turns the liquid water into water vapor in the atmosphere. Plants, too, help water get into the atmosphere through a process called transpiration!
Without using the scientific method, it would be much harder to determine a factor that could cause your experiment to fail. By sticking to only one of the methods you could easily destroy your experiment without the background search needed or the materials planned out.
For number 8:
all radio waves,
infrared radiation,
visible light,
ultraviolet radiation,
X-rays,
gamma rays.
