What is sediment and what are the four classifications of marine sediments based on their origin?
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Sediment is a general term referring to particles of organic or inorganic matter that accumulate in a loose, unconsolidated form. The appearance of sediment can vary widely, coming in a range of sizes and types, from the common beach sand to manganese nodules of the deep Pacific seafloor. The sediments that cover the surface of seafloor are classified as 1 ) terrigenous sediments that originate on the continents or islands from erosion, volcanic eruptions, and blown dust, 2 ) biogenous sediments that originate from microorganisms, 3 ) hydrogenous sediments that formed in-place from chemical reaction in the water, and 4 ) cosmogenous sediments that have an extraterrestrial origin. Cosmogenous sediments are very rare in the ocean, though.
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Which of the following describes the role played by the water cycle in determining the earth's heat budget?
A) has no significant role B) transfers heat from surface to atmosphere C) transfers heat from atmosphere to space D) transfers heat from atmosphere to surface
Explain how increased reliance on tree plantations can reduce overall forest biodiversity and degrade forest topsoil.
What will be an ideal response?
A large-scale outbreak of a disease is called a(n) ____________________ and a global-scale outbreak is called a(n) ____________________.
Fill in the blank(s) with the appropriate word(s).
How much did the central pressure drop from normal sea level pressure?
What will be an ideal response?