UV-B light can cause skin burn on humans. What effects does it have on plants?
What will be an ideal response?
It results in harder plants that exhibit slower growth, more branching,
shorter internodes, less leaf expansion, thicker leaves, thicker cuticles, and more
anthocyanin (red) pigment for protection against UV light.
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The best way to prevent an eye injury is to__________.
A. use one hand to shield your eyes when grinding metal. B. squint or blink rapidly when welding and do not look directly at the arc. C. keep your eyes tightly closed when cutting metal. D. always wear approved safety glasses.
A shaft is being cut in a lathe. The tool feeds (advances) 0.015 inch each time the shaft turns once (1 revolution). How many revolutions will the shaft turn when the tool advances 3.450 inches? Round the answer to 2 decimal places.
Fill in the blank(s) with the appropriate word(s).
What is an intermittent pilot ignition system?
A) a pulsing LED that indicates the burner activity B) the gas pilot is ignited with each call for heat and shut off at the end of the call C) a pilot light that only operates when the thermostat is not calling for heat D) the gas pilot light only works correctly some of the time
?Before using a valve spring compressor, what part of the valve and spring assembly should be struck with a short piece of pipe and a hammer?
What will be an ideal response?