Which of the following practices would encourage higher soil temperatures in the spring in a humid-temperate area?
A) follow no-till practices with a killed cover crop
B) use a plastic mulch
C) rototill the soil to leave it fluffy and bare
D) irrigate the soil to leave it wet and dark colored
E) apply a thick mulch of straw
C
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In the design process called ____ engineering, environmental concerns are considered throughout the process, not just at the end.
A. impact B. green C. sustainability D. responsibility
When the recap is complete, prices of each trade will be presented in ____ form, which facilitates easier evaluation of the estimate.
A. summary B. standard C. generic D. basic
Which tailpipe emission does SCR attempt to minimize?
A. PM B. VOCs C. CO D. NOx
There are conditions where arcing in an electrical circuit is normal, such as ____.
a. arcs caused by brushless motors b. turning a light switch on or off c. changing a light bulb without the power turned on d. plugging in an appliance that is off