Animals are not an effective form of weed control
Indicate whether the statement is true or false
F
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____ are the welds, usually small in size, that are made during the assembly to hold all of the parts of a weldment together so they can be finish-welded.
A. Fillet welds B. Tack welds C. Plug welds D. Spot welds
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Soil scientists generally map the soils in a landscape by sampling the soil in ________
A) pre-determined a grid-like geometric pattern of evenly spaced points B) a computer-calculated pattern of random points C) four soil pits, one dug in each corner of the area to be mapped D) auger holes made mostly near expected soil boundaries E) A and D
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When does "toppling" occur?
What will be an ideal response?
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Which refrigerant/s have an ODP of zero?
A. CFC B. HCFC C. HFC D. HC E. both c and d
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