Ultramafic lava flows are significant in the Archean rock record because they indicate that Earth
was 90 percent molten. Indicate whether the statement is true or false.
F
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What rock evidence leads geologists to conclude that much of Pangaea was an arid or semi-arid environment? What will be an ideal response?
Some milk becomes contaminated with mercury. If each of the following people consume 16 ounces of this contaminated milk each day for a month, who will most likely be impacted by this poison?
A) An 82-year old woman B) A fetus inside a mother who drinks this contaminated milk C) A 12-year old girl D) A 51-year old man
Net primary productivity is a measurement of how much each individual plant photosynthesizes
Indicate whether the statement is true or false
For the reaction A + B ? 2 C, which of the following statements is true?
A) B is consumed at the same rate that A is consumed. B) C is produced at twice the rate A is consumed. C) both a and b D) neither a nor b