Geochemistry-Stable Isotopes and Their Application to Earth System Processes [CSIR (Council of Scientific & Industrial Research) Earth Sciences]: Questions 1 - 2 of 2
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Question 1
Appeared in Year: 2018
Question MCQ▾
Which of the following isotopes would be the most useful to study the Earth process that has time scales of 1000 years? (June)
Choices
Choice (4) | Response | |
---|---|---|
a. | (Half-life million years) | |
b. | (Half-life years) | |
c. | (Half-life years) | |
d. | (Half-life years) |
Question 2
Appeared in Year: 2022
Question Match List-Ⅰ List-Ⅱ▾
Match the isotopes in Column I to the ocean-atmospheric processes in Column II that they are used to study. (January)
List-Ⅰ (Isotopes) | List-Ⅱ (The Ocean-Atmospheric Processes) |
---|---|
(A) 15N | (i) Palaeotemperature |
(B) 2H | (ii) Denitrification |
(C) 13C | (iii) Primary Production |
(D) 18O | (iv) Hydrological Cycle |
Choices
Choice (4) | Response | |
---|---|---|
| ||
a. |
| |
b. |
| |
c. |
| |
d. |
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