Describe the difference between sprinkler, surface, and drip irrigation
What will be an ideal response?
Sprinkler irrigation places the water where it is needed at the time it is needed. The amount of water
that is applied is easily controlled by the length of time that the irrigation system is allowed to operate
on the same setting. Sprinkler irrigation delivers a uniform supply of water to all areas of the field.
Surface irrigation water is delivered to the crop by gravity, flowing over the surface of the soil or in
ditches or furrows. It is an inexpensive means of providing water to crops. However, the cropland may
need to be leveled before it can be irrigated.
Drip irrigation supplies water to the roots of crops in a uniform manner. Use of tubes located either
above or beneath the soil to deliver the water to the crops makes a drip irrigation system expensive to
set up. It has the advantage of low operating costs when in operation, however, and it is the most
efficient use of water.
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Answer the following statement(s) true (T) or false (F)
Steel structural beams cannot be cut.
Answer the following statement(s) true (T) or false (F)
A. The “gamma” refers to the activity coefficient in the liquid phase, while the “phi” refers to the mixture fugacity coefficient in the vapor phase. B. The approach is most beneficial for systems that behave as ideal solutions, such as benzene + toluene. C. The approach has value for systems when the system pressure is high. D. The approach is more complicated than Raoult’s Law or Modified Raoult’s Law, since the vapor-phase composition is a variable in the calculation of the mixture fugacity coefficients. E. None of the above are false.
Diesel engines are more fuel efficient than gasoline engines
Indicate whether the statement is true or false
The Poland China swine breed was developed in:
A. China B. England C. Ohio D. New Jersey