Preservation of organic matter in sedimentary rocks is most successful in the absence of:
a. carbon dioxide
b. oxygen
c. hydrogen sulfide
d. nitrogen
b
Environmental & Atmospheric Sciences
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How can you tell a point event table from a line event table?
What will be an ideal response?
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Plants give up moisture by a process called perspiration
a. True b. False
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The ________ era is known as the "age of flowering plants."
What will be an ideal response?
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Heavy use of ground water can cause a region's water table to ________.
A. drop to deeper depths B. increase in thickness C. disappear D. flow faster E. rise toward the ground surface
Environmental & Atmospheric Sciences