Most of the different nutrients essential for growth are supplied to plants directly from the ________
A) atmosphere
B) humus
C) soil solution
D) rain water
E) cosmic radiation
D
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Explain how salinity is measured
What will be an ideal response?
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A common type of clamp is the _____
a. "C" clamp c. miter clamp b. hand screw clamp d. all of the above
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Most soldering jobs in agricultural mechanics can be done with solder composed of
a. 30 percent tin, 70 percent iron c. 50 percent tin, 50 percent lead b. 40 percent copper, 60 percent steel d. 30 percent tin, 70 percent steel
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A 1000 kg car is traveling at 108 km/h. What is its momentum?
What will be an ideal response?
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