Excess nutrients promote plant growth in lakes, turning them eventually into swamps. This is called ____________________.
Fill in the blank(s) with the appropriate word(s).
eutrophication
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What are the two parts needed when verifying a concentricity or symmetry tolerance?
What will be an ideal response?
Water pumps ________.
A) Only work at idle and low speeds and are disengaged at higher speeds B) Disengage during freezing weather to prevent radiator failure C) Use engine oil as a lubricant and coolant D) Are driven by the engine crankshaft or camshaft
Un material en láminas específicamente preparado para utilizar como revestimiento de formas se denomina _____.
a. placa dura templada b. placa de partículas c. tablaroca d. plyform
Technician A says that oily residue on a fitting or hose can indicate a refrigerant leak. Technician B says that this residue is normal around most A/C fittings. Who is correct?
A) Technician A only B) Technician B only C) Both Technicians A and B D) Neither Technician A nor B