What ranges of wavelengths are most useful for photosynthesis?
What will be an ideal response?
400-500 and 600 –700 nm (for both chlorophylls a and b combined)
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____ incident responses enables the organization to react to a detected incident quickly and effectively, without confusion or wasted time and effort.
A. Recording B. Predefining C. Publishing D. Discussing
Two types of buildings with load-bearing CFS walls have been identified in this text: (a) CFS buildings as Type V(B) construction and (b) CFS buildings as Type II(A) construction. The distinction between the two is primarily based on the
A) corrosion protection of CFS members. B) extent of prefabrication used in construction. C) type of materials used in floor and roof assemblies. D) size of CFS studs. E) none of the above.
Most residential electric water heaters operate on 240 volts, are wired with 10 AWG conductors, and are protected with a __________-ampere overcurrent protection device.
a. 20 b. 30 c. 40 d. 50
You need to de-energize a circuit to work on a unit. To ensure your safety, you should:
A) Leave a clearly written"Keep Off" message in 1" block letters. B) Lock out and tag out the circuit. C) Ask a friend to stand beside the disconnect switch to ensure nobody turns it on. D) Work quickly to reduce your exposure to the electricity.