How is coal produced?
A) with natural gas
B) the same way oil is produced
C) Obsidian and water are mixed together and buried for hundreds of years.
D) Plant organic matter is compressed into rock under elevated heat and pressure during burial.
Answer: D
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Which nation has the highest RNI?
A) Russia
B) China
C) Pakistan
D) Nigeria
E) Indi
What is air pressure, and how does it vary with temperature? What will be an ideal response?
Which of the following large river systems has the greatest annual flow?
a. Mississippi b. Nile c. Yangtze d. Amazon e. Volga
The climatic cooling of the last 55 million years has been caused by ________.
A. the ongoing breakup of Pangaea into separate continents B. the uplifts of the Tibetan Plateau/Himalaya Mountains in Asia and the Colorado Plateau in the western United States deflecting west-to-east atmospheric circulation in the midlatitudes C. continental masses moving into polar latitudes D. snow and ice accumulating on polar landmasses, increasing albedo E. All of these choices are correct.