Some nations have experienced an increase in certain crop yields after greatly cutting pesticide use
Indicate whether the statement is true or false
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A cubic centimeter of quartz, olivine, and gold weighs 2.5, 3.0, and 19.8 grams, respectively. This indicates that ________
A) olivine and quartz powders are harder than metallic gold B) gold is 6 to 7 times harder than olivine and quartz C) gold and olivine are silicates, whereas quartz is elemental silicon D) gold has a higher density and specific gravity than quartz and olivine
The part of the shoreline that extends from the berm crest to the low-tide level is the:
a. offshore b. foreshore c. nearshore d. backshore
The most likely cause of leaking between two joining couplings is a damaged or missing _______.
a. shank gasket b. compression gasket c. expansion ring d. swivel gasket
When new oceanic lithosphere is generated at an oceanic ridge, what happens to the two plates on either side of the ridge?
A) The plates get larger. B) The plates get smaller. C) The plates stay the same size. D) The plates sink into the lower mantle.