Scientists who are interested in whether there is life on Mars are currently studying
A. structures found in Martian oceans.
B. whether Mars has water.
C. varying oxygen levels in the Martian atmosphere.
D. green patches on Mars.
Answer: B
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Upwelling would be strongest off the coast of Peru during
A) neutral ENSO. B) La Niña. C) El Niño. D) La Niña and El Niño.
Using Table ? on page ???, compare Tucson’s annual CAP allotment with
the annual recharge of the Tucson Basin. What will be an ideal response?
The most water can be held within a soil mixture consisting of equal masses of which soil types?
A) Sand and silt B) Clay and sand C) Silt and clay D) Small stones and sand
The original factors of production in global development—population and resources—are declining in importance and being replaced by specialization
Indicate whether the statement is true or false