You run to your girlfriends house and announce that you were running at a rate of 15 miles per hour. She knows this is not true because she knows

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is transformed ⇒ as it changes into other forms of energy.

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

By what primary heat transfer mechanism does the sun warm the earth?