Question

12. Which one of the following is the hardest mineral?
(a) Topaz
(c) Quartz
(b) Diamond
(d) Feldspar
13. Which one of the following is not a sedimentary rock?
(a) Tillite
(c) Breccia
(b) Borax
(d) Marble
14. Which one of the following processes is a gradational process?
(a) Deposition
(c) Volcanism
(b) Diastrophism
(d) Erosion
15. Which one of the following materials is affected by hydration pr
(a) Granite
(c) Quartz
(b) Clay
(d) Salts
16. Debris avalanche can be included in the category of:
(a) Landslides
(c) Rapid flow mass i
(b) Slow flow mass movements
(d) Subsidence
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Answer 1

Answer:

12. a

Explanation:

pls mark me as brainliest then I will answer other four

Answer 2

Answer:

(c) Diamond

Explanation:

it is the hardest material is known