Explain how forests benefit the environment
What will be an ideal response?
ANS:Forests
filter rain as it falls and help reduce erosion of the soil. They trap soil sediment and help
maintain water quality. Trees and shrubs of the forest are also instrumental in removing many of the
pollutant materials from the air and from water runoff. Similarly, the roots of trees filter excess
nutrients from water runoff. They also help reduce the harmful effects of excess fertilizer nutrients that
enter streams and underground water systems.
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Trapway designs for 1.6 gallon per flush water closets do NOT include
A. siphonic B. siphon wash C. blowout D. washdown
When using a torque wrench to tighten a circular compressor head:
A) Set the wrench to 120% of the specification to allow for loosening. B) Tighten the bolts in a clockwise pattern, working your way around the circle. C) Apply a bead of silicone sealant to the gasket before starting D) Tighten all the bolts to a lower torque, repeat with a slightly higher torque, and finally tighten all the bolts to the specified torque.
The welding accessory that uses a steel surface and piece of flint is called a _____.
a. sparker b. fuel-gas lighter c. friction lighter d. igniter
GMO labeling is a barrier to trade
Indicate whether the statement is true or false