A lower 18O/16O ratio in ocean sediment cores indicates a ________ climate, whereas a higher 18O/16O ratio indicates a ________ climate
A) cooler; warmer
B) warmer; cooler
C) cooler; cold
D) warmer; hot
B
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The first hominins lived in the forests
a. True b. False
Global warming appears to be thawing the permafrost as indicated by ________
A) increased surface waters in the Arctic B) houses sinking into the ground in Alaska C) disappearing lakes in the Arctic D) all of the above Word Analysis. Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern.
If the contact between the upper light-colored sedimentary layers and the lower dark-colored metamorphic rocks is a depositional contact, what type of feature is present?
A. an ancient erosion surface B. a surface representing missing geologic time C. an angular unconformity D. All of these choices are correct.
Because water can be so important in mass movement, what is one of the most effective and
inexpensive ways of reducing mass wastage risk and damage? What will be an ideal response?