Saline soils are characterized by ________
A) high CaCO3 levels near the soil surface
B) pH values of less than 8.5
C) sodium adsorption ratios of 13 or higher
D) electrical conductivity of standard saturated paste of less than 4 dS/m
E) low chloride and sulfate contents
B
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What is the name of the metal plates located inside a shell and tube heat exchanger that are designed to increase turbulent flow and reduce hotspots.
a. vertical baffles b. impingement baffle c. longitudinal baffles d. all the above
In various parts of the world, soil phosphorus is associated with which of the following environmental problems?
A) soil degradation because of depletion of soil phosphorus B) eutrophication of lakes because of a build-up of soil P in the watersheds C) toxic levels of phosphate in groundwater supplies D) both A and B E) all of the above
When the inputs to a 3-input OR gate are 001, the output is HIGH
Indicate whether the statement is true or false
Subtract the following numbers to obtain the difference: 4,251 feet - 976 feet
What will be an ideal response?