Answer to Question 1
D
Answer to Question 2
Manganese nodules are a form of hydrogenous sediments. They contain manganese and iron oxides in addition to small amounts of cobalt, nickel, chromium, copper, and zinc.
These nodules are formed in layers over millions of years due to a very slow chemical reaction with sea water. There is often something acting as a nucleus in the middle of these nodules. This can include shark teeth, bone fragments, and even microscopic algae and animal skeletons.
There are materials present in manganese nodules that are used for industrial purposes. As the cost of raw materials increases, people might look to these nodules as a viable new resource of these materials.
Think about where these nodules are found. They are not always within any one designated country's waters. The distribution of wealth from these nodules will likely only go to the countries that can afford to mine them. These factors could become political as they determine the distribution of the nodules.
Decomposers (detritivores) feeding on dead plant and animal matter.
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Surface molecules involved in the interaction between an antigen-presenting cell and a CD4+ T cell.
A solution of CsF in water has XCsF = 0.0700. What is the molality?
Nutrias native to South America are abundant in freshwater marshes of the Gulf States. Their populat