Which of the materials is NOT recently mined from the ocean floor?
1.oil and gas
2.nodules
3.diamonds
4.phosphorites
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To determine which of the materials is not recently mined from the ocean floor, we can explore each option and eliminate the one that does not fit the criteria. Here's an explanation for each material:
1. Oil and Gas: Oil and gas are often extracted from beneath the ocean floor through offshore drilling. Therefore, they can be considered as materials recently mined from the ocean floor.
2. Nodules: Nodules are rock concretions that contain valuable minerals such as manganese, nickel, copper, and cobalt. These nodules are found on the ocean floor, and extensive mining operations have been carried out to extract them in recent years.
3. Diamonds: While most diamonds are mined on land, they can also be found in marine environments such as riverbeds and coastal areas. In some cases, diamonds have been discovered on the ocean floor. Therefore, diamonds can also be considered as materials recently mined from the ocean floor.
4. Phosphorites: Phosphorites are sedimentary rocks that contain high concentrations of phosphorus. They are not typically mined directly from the ocean floor but are instead formed over long periods of time through geological processes. Phosphorites are often found in ancient marine environments such as former ocean basins or seabed sediments. Therefore, phosphorites are the material that is NOT recently mined from the ocean floor.
In conclusion, the material that is NOT recently mined from the ocean floor is phosphorites (option 4).
I don't see any science tutors online right now. Sorry.
You should NEVER post last-minute questions here.
It's not 1 or 3, that's a hint
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