Growers who formulate their own soilless substrate often experience a phenomena called shrinkage. What does this refer to and why does it happen?
What will be an ideal response?
Shrinkage refers to the situation where the final volume of mix prepared
is less than the sum of the volumes of components going into the mix. It occurs
because the particles of components with small diameters are able to fit between
the particles of components with large diameters.
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Audible alarm indicators, for commercial spaces, must output a minimum level of _____dB at 10ft. and be _______dB greater than the ambient noise level.
A. 60dB, 6dB B. 60dB, 15dB C. 75dB, 15dB D. 85dB, 15dB
Define true profile and describe how the true profile is dimensioned.
What will be an ideal response?
Material prices for backfill have three main components. ?
Answer the following statement true (T) or false (F)
The meristem tissue is found at the tips of stems and branches, and at the tips of roots
Indicate whether the statement is true or false