The key to preventing soil erosion by water on both farmland and landscaping job sites is:
A) to grade or till the soil until a smooth surface is achieved.
B) to keep the soil moist (with irrigation if necessary).
C) to practice good landscape sanitation by clearing away any weeds and old plant residues.
D) to provide adequate surface and subsurface drainage.
E) to keep the soil surface covered with vegetation.
E
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In 1855, pro-slavery southerners regarded Kansas as
A. territory governed by the Missouri Compromise. B. slave territory worth contesting against antislavery northerners to determine the territory's ultimate political status. C. geographically unsuitable for slavery. D. too close to free states for slavery to be practical. E. a test for slavery in wheat-growing areas.
It is difficult to grow quality turf on heavily shaded sites where the grass receives less than 4 hours of full sunlight
Indicate whether the statement is true or false
Magnetic declination is a constant. It does not change over time
Indicate whether the statement is true or false
The greatest difference between relays and contactors is the fact that contactors are equipped with large contacts that are intended to connect high-current loads to the power line.
Answer the following statement true (T) or false (F)