Question

The study of the origin, structure and evolution of the Earth is known as

• A. Seismology
• B. Meteorology
• C. Geology
• D. Petrology

Hint:

Pay attention to root words.
"Geo-" always refers to the Earth.
"Geology" is therefore the overarching study of the Earth, while "Petrology" (petra = rock) is a sub-discipline under it.

Answer 1

The Correct Option is C

Step 1: Understanding the Question:
This is a general science question asking for the name of the scientific discipline that studies the physical Earth.

Step 2: Key Formulas and approach:
Examine and define each of the branches of physical science listed in the options to identify the correct field of study.

Step 3: Detailed Explanation:
$\bullet$ Option (A) "Seismology" is the scientific study of earthquakes and the propagation of elastic waves through the Earth or other planet-like bodies. It is a subfield of geophysics.
$\bullet$ Option (B) "Meteorology" is the study of the atmosphere, atmospheric phenomena, and weather processes, not the solid Earth itself.
$\bullet$ Option (C) "Geology" (derived from the Greek roots "geo" meaning Earth and "logos" meaning study) is the primary science that deals with the Earth's physical structure, its substance, history, origin, and the processes acting upon it. This matches the definition in the question.
$\bullet$ Option (D) "Petrology" is a specific branch of geology that focuses on the origin, composition, structure, and classification of rocks. It is too narrow to encompass the entire Earth's evolution and origin.

Step 4: Final Answer:
The correct scientific term is "Geology", which is Option (C).