Gce Model Questions Vol1 2024 Geography Question 30

Practice objective / multiple choice question 30 from the 2024 Gce Model Questions Vol1 Geography examination.

Gce Model Questions Vol1 2024 Geography Objective / Multiple Choice Medium Difficulty
Question 30 GCE_MODEL_QUESTIONS_VOL1 • 2024 • GEOGRAPHY • objective

A volcanic rock contains a radioactive isotope with a half‑life of 1.2 million years. Laboratory analysis shows that 25 % of the original parent isotope remains. (a) Calculate the age of the rock in millions of years. (b) State the rock type based on its formation process.

Answer Options

A. 3.6 million years; sedimentary
B. 0.6 million years; extrusive igneous
Correct Answer C. 2.4 million years; extrusive igneous
D. 2.4 million years; intrusive igneous
Correct Answer
C
Correct Option:
2.4 million years; extrusive igneous

About This Question

This is Gce Model Questions Vol1 2024 Geography Question 30. It is one of the objective questions from the 2024 Gce Model Questions Vol1 Geography examination.

Difficulty level: Medium .

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