Where have the oldest dated sand grains been found on Earth?
A) Australia
B) Canada
C) The United States
D) Africa
Answer: A
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According to the environmental wisdom world view, humans are ____________________ the community of life, and not separate from it
Fill in the blanks with correct word
Acid mine drainage occurs when ____.
A. mines use acid to clean equipment B. acid is used to remove rare earth minerals from mines C. acid is used to detect low grade mineral ores D. naturally occurring acids are uncovered during the mining process E. rainwater seeps through an underground mine spoils pile and produces sulfuric acid
Waves are said to “feel bottom” when the water depth is less than approximately half the _______________
Fill in the blank with correct word.
Most Latin American countries are in the second or early third stages of the demographic transition. What does this imply about their birth and death rates? a. Birth and death rates are low
b. Birth and death rates are high. c. Birth rates are high but declining, and death rates are low. d. Birth rates are low but increasing, and death rates are low. e. Birth rates are high, and death rates are high but decreasing.