The nutrient most often limiting the growth of aquatic plants and algae in unpolluted fresh water lakes is ________
A) K
B) P
C) S
D) N
E) none of the above
B
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An advantage of a "series flow" configuration of ground loops is ____.
A. smaller diameter pipes B. ease of removing trapped air C. lower installation costs D. less antifreeze is required
?Welding engineers ____
A. ?clean slag from the welds, and help position weldments. B. ?position all the parts in their proper places and make ready for the tack welders. C. ?often help the welder by making small welds to hold parts in place. D. ?design, specify, and oversee the construction of complex weldments.
Grids made of ____aid in holding stems in place, reducing the amount of floral material needed to
achieve a desired form.
a. fresh flower foam c. waterproof tape or transparent tape b. hana kubari d. insertable frameworks
The number of viewing points you can use in the AutoCAD program:
a. Is ten (six Orthographic and four Isometric) b. Depends on whether you are working in 3D or 2D c. Is infinite d. Depends on the current UCS