Sources of geothermal power are hydrothermal resources that have both water (hydro) and heat (thermal) and come from either dry steam wells or from hot water wells. The hot water or steam is used as an energy which powers a turbine that generates electricity. Geothermal power plants use steam produced from reservoirs of hot water found a couple of miles or more below the Earth's surface.
There are different types of observers. Casual observers differ from scientific observer. Seeing and observing are two different things. Not that everybody seeing is actually observing the thing.
A casual observer just sits back and watch for something to happen while a scientific observer comes up with some hypothesis to work on it.
Answer:
Dependent variable: What you're measuring.
Independent variable: The variable the researcher is changing.
Controlled variable: The variable that is being used as an example that is not being experimented on. It is kept the same throughout the whole experiment.
Explanation:
