Conical igneous intrusions from which diamonds are mined are called ____________________ pipes. Fill in the blank(s) with the appropriate word(s)


kimberlite

Environmental & Atmospheric Sciences

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There are several kinds of nuclear waste that require specific kinds of disposal. Which of the following statements is correct?

A. High-level nuclear waste must be stored underground. B. Certain kinds of waste (transuranic waste) are stored in the waste isolation pilot plant in New Mexico. C. Low-level radioactive waste must be stored in the state where it was produced. D. None of these statements is correct.

Environmental & Atmospheric Sciences

About ____% of worldwide stocks of tuna, cod, and other large ocean fishes have disappeared in the last 50 years

A) 10 B) 30 C) 60 D) 90

Environmental & Atmospheric Sciences

ANS: C

Oxygen in itself is a very reactive element. It binds quickly to other materials. Remember, free oxygen only became abundant in our atmosphere when photosynthetic organisms began producing more. Thus, if there is a large amount of free oxygen, then there is something present that is replacing it in the atmosphere. This is likely to be a life-form of some sort. Information can be found in the section Are There Other Ocean Worlds

Environmental & Atmospheric Sciences

Epicontinental Sea is a deep sea overlying a continent.

a. true b. false

Environmental & Atmospheric Sciences