Apair of scientists proposes two different theories to explain the same set of observations. which of the following best explains the value of these competing theories?

competing theories can be a source of new, testable ideas.
competing theories are necessary to transform a theory into a law.
competing theories generate controversy that popularize ideas.
competing theories allow scientists to combine the most interesting aspects of both theories.

Competing theories can be a source of new, testable ideas.

Explanation:

Theory is the set of knowledge that seeks to explain, with a high degree of accuracy, all-encompassing phenomena of nature, that is, it is different from the meaning of the word "theory" used in everyday life, when we say that something "is only a theory "in the sense that it is a mere speculation.

Competing theories present a much larger set of knowledge, which gives the universe a source of new and testable ideas

b.a device that inputs heat into a cool object