Approximately how many plant and animal species have been identified?
A) 100,000 B) 1.75 million C) 3.4 million D) 13.6 million E) 111.7 million
B
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In which of the following locations are hurricanes most likely to form?
A. an area where trade wind inversion is strong B. along a jet stream C. along the equator D. along the ITCZ
About how large can raindrops get? Why can't they get any larger? What shape does a large raindrop have? What forces determine this shape?
What will be an ideal response?
A bullet is dropped from the top of the Empire State Building while another bullet is fired downward from the same location. Neglecting air resistance, acceleration is greatest for the
A) fired bullet. B) dropped bullet. C) same for each
Soil formation and water purification are examples of ________ based on the biodiversity that benefit humans.
A. Availability of food B. Health benefits C. Geological cycles D. Ecological services E. Aesthetic benefits