A person who studies earthquakes and their effects is known as –

Correct option is D

The correct answer is option (d) – Seismologist.
Meaning of the phrase: A person who studies earthquakes and seismic waves is known as a Seismologist.
Hindi: भूकंप और पृथ्वी की गति का अध्ययन करने वाला व्यक्ति – भूकंप वैज्ञानिक
Meanings of all the given options:
(a) Novice: A beginner or inexperienced person.
• Hindi: नवशिक्छु – गलत
(b) Theist: A believer in God.
• Hindi: ईश्वर में विश्वास रखने वाला – गलत
(c) Tourist: A person who travels for pleasure.
• Hindi: पर्यटक – गलत
(d) Seismologist: Expert who studies earthquakes.
• Hindi: भूकंप वैज्ञानिक – सही उत्तर