Select the most appropriate option to fill in the blank.
Newton discovered the ______ of gravity while watching an apple fall from the tree.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. principle.
Context:
The sentence refers to Newton's discovery related to gravity, which is a scientific rule or fundamental law.
Meaning of the words:
Belief – A conviction or acceptance that something is true, often without proof.
Thesis – A long piece of writing on a particular subject, especially for a university degree.
Code – A system of rules or symbols, often for communication or behavior.
Principle – A fundamental truth, law, or assumption that serves as the foundation for a system of belief or reasoning.
Correct word: Principle
Reason:Gravity is a scientific principle—a fundamental law observed in nature. Newton did not discover a "belief," "thesis," or "code" but rather the core concept or law governing gravitational force.
Final Sentence:Newton discovered the principle of gravity while watching an apple fall from the tree.
Hence, the chosen option will be correct.