How is most calcite formed?
Most calcite forms when oceanic organisms such as clams, oysters, corals, and floating microorganisms use dissolved compounds from sea water to construct their shells.
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What caused the formation of the Himalayas?
What will be an ideal response?
Which of the following is not a factor that is contributing to the decline in amphibian populations?
a. habitat loss and fragmentation b. viral and fungal diseases and parasites c. increase in UV radiation d. prolonged drought e. hunting of frogs for froglegs, a delicacy that is served in restaurants
When did the harvesting of commercial whale species cease?
A) When the International Whaling Commission formed B) When there were substitutes for the products produced from whales C) When the hunting of whales became uneconomical D) All of these choices
________ works by measuring temperatures deep in the ground and using our understanding of heat transfer in materials to infer what the surface must have been in the past.
A. Borehole thermometry B. Feedback loops C. Climate modeling D. Solar forcing