Soil ____________________ exchanges soil and atmospheric air to maintain adequate oxygen for plant roots
Fill in the blank(s) with the appropriate word(s).
ANS: aeration
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Saturated water vapor at 1000 kPa is throttled to 100 kPa. The velocity of the steam remains constant through the process. Determine the exit temperature of the water vapor.
Given: P1 = 1000 kPa; x1 = 1 (saturated vapor); P2 = 100 kPa Water (Steam) (Take State 1 as the inlet, State 2 as the outlet.) Assume: Q?=W?=0. For a throttling valve, assume steady-state, steady-flow, single-inlet, single-outlet flow, with ?KE = ?PE = 0 What will be an ideal response?
List two environmental factors that also increased the need for change in the traditional grid.
What will be an ideal response?
Biomass gasification utilizes ____, which is the heating of a hydrocarbon fuel in a low oxygen environment
a. pyrolysis c. oxidation b. combustion d. hydrolysis
Cattle buyers usually prefer calves that have been castrated and vaccinated
Indicate whether the statement is true or false