Describe what happens to the vegetation in a range area if there is overgrazing for an extended period of time. What
happens as a result of undergrazing?
What will be an ideal response?
Both overgrazing and undergrazing eventually result in the invasion of a range area by shrubs and other large plants
that grow taller than the grasses and dominate them by casting shade on them.
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New shoots that develop from adventitious buds on roots and develop from the ground are known horticulturally as ________. Shoots that develop from latent buds on lower parts of woody plants are known as ________.
Fill in the blank(s) with the appropriate word(s).
A distillation unit is to be used to generate pure water vapor. 5.0 lbm/s of liquid water at 100oF enters the system, and 1.0 lbm/s of saturated water vapor leaves through one port and 4.0 lbm/s of saturated liquid leaves through a second port (along with impurities in the water which can be neglected in the analysis). The pressure throughout the whole system is 20 psia. A stirring system is used, which is powered by a 0.4 hp motor – assume that all of the motor’s work enters the system. All other energy is added through heat transfer.
(a) Determine the rate of heat transfer needed to produce this flow of saturated water vapor. (b) Using your separation chamber model, plot the heat transfer rates needed to produce saturated water vapor flow rates between 0.5 lbm/s and 4.0 lbm/s (along with corresponding changes to the saturated liquid water exit flow rates). State 1: Inlet stream; State 2: Saturated vapor exit stream; State 3: Saturated liquid exit. Given: P1 = P2 = P3 = 20 psia; T1 = 100oF; x2 = 1.0; x3 = 0.0; m?1=5.0lbm/s; m?2=1.0lbm/a; m?3=4.0lbm/a; W?=?0.4 hp=?0.283 Btu/s Assume: Given no other information regarding the mixing chamber, make the following common assumptions: ?KE=?PE=0. We are told there is heat transfer. Also, assume the mixing chamber is a single-inlet, multiple-outlet, steady-state, steady-flow device. What will be an ideal response?
__________ protection should be worn when the highest level of respiratory, skin, and eye protection is needed.
Fill in the blank(s) with the appropriate word(s).
76 - 24 =
A) 92 B) 50 C) 52 D) 42