Which of the following is TRUE about a scientific theory?

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CTET Paper 2 Maths & Science 27th Dec 2021 (English-Hindi-Sanskrit)
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  1. Scientific theories are sets of factual statements.
  2. Scientific theories are random guesses about natural phenomena
  3. Scientific theories provide explanation of phenomena based on empirical evidence, logic and debate.
  4. Scientific theories are not open to further debate and modification

Answer (Detailed Solution Below)

Option 3 : Scientific theories provide explanation of phenomena based on empirical evidence, logic and debate.
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A scientific theory refers to a well-established explanation of a certain aspect of the natural world, which is acquired through the use of the scientific method, and thoroughly tested and confirmed by experimentation and observation with proper evidence. Key Points

Characteristics of scientific theories

  • All processes in science are done with a specific purpose, evidence is collected with reliable and valid methods, and they are examined critically by controlling different variables.
  • Random guesses about natural phenomena without proper evidence can't be developed into a scientific theory.
  • A scientific theory explains the concepts along with the reasons and proofs which are available in nature.
  • A scientific theory remains true until any other scientific evidence is not created proving it wrong.
  • Scientific theories are open to further debate and modification, anyone can prove them wrong by showing proper evidence and establishing their theory with proof.

​Hence the statement " Scientific theories provide an explanation of phenomena based on empirical evidence, logic and debate" is true regarding scientific theory.

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