About ________ people cross the border at the San Ysidro, California border each year
A) 100 million
B) 50 million
C) 25 million
D) 10 million
E) 5 million
Answer: B
Environmental & Atmospheric Sciences
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What can serve as ice nuclei, and what are the important physical properties relevant to ice nuclei and ice formation in the atmosphere?
What will be an ideal response?
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Which of the following is NOT a major class of rock-forming minerals?
A. oxides B. argonites C. silicates D. carbonates
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Species extinctions are inevitable, so expending resources on combating species loss is pointless
Indicate whether the statement is true or false
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