Which of the following soils has the smallest diameter particles?
a. humus
b. sand
c. silt
d. clay
D
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Which of these U.S. states has the highest potential for developing efficient wind power farms?
A. South Dakota B. Georgia C. New Mexico D. Arkansas
The Dutch islands of the Caribbean include which of the following?
A) Montserrat, Jamaica and the Bahamas B) Aruba, Curaçao and Bonaire C) Dominica, Antigua and Grenada D) Martinique, Guadeloupe and St. Lucia E) St Vincent & the Grenadines, St. Kitts & Nevis and St. Croix
A mineral's specific gravity and density ____
A)are always different B)cannot be calculated with a small specimen C)are calculated based on the specific gravity and density of denatured alcohol D)change with elevation E)are controlled by its structure and composition
Why can't most tornadoes be viewed on existing radars?
A) The tornadoes contain water and are, thus, invisible. B) The tornadoes are spinning too quickly. C) The tornadoes have diameters that are too small. D) The tornadoes are hidden by the parent mesocyclone. E) The tornadoes have very low pressure, thus creating a vacuum.