diamonds form— select one: a. in earths mantle. b. in cold environments. c. above earths surface. d. in warm…

diamonds form— select one: a. in earths mantle. b. in cold environments. c. above earths surface. d. in warm oceans.
Answer
Brief Explanations:
Diamonds form under high - pressure and high - temperature conditions in Earth's mantle. Cold environments, above Earth's surface, and warm oceans do not provide the necessary conditions for diamond formation.
Answer:
A. in Earth's mantle.