Explain why some scholars contend that organic agriculture is not environmentally friendly
What will be an ideal response?
They contend that organic production requires more land and more labor to produce the same amount of products grown using conventional means. Any increase in food production will come about in either one of two methods. One is to clear new land and increase the number of acres under cultivation, or two, grow more food and fiber on the land currently under production. The concern raised over organic production is that the use of these practices will necessitate the clearing of more land. As more land is cleared, the loss of wildlife habitat will increase. Most of the new land is being cleared through the "slash and burn" methods used in the tropical areas. A large portion of the land cleared is poor quality and highly susceptible to erosion. However, through the use of more intensive farming, less new land will have to be put into production.
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Arenas should be at least ____________________ feet wide and can be used for exercising and training horses.
Fill in the blank(s) with the appropriate word(s).
When are flare systems heavily used?
A) During plant decommissioning procedures B) During startup of equipment C) During cleaning of equipment D) All of the above
Answer the following statement(s) true (T) or false (F)
1. In a parallel RL circuit, the current will lag the voltage in all branches. 2. In a parallel RL circuit, if the inductive reactance equals the resistance, the circuit is in resonance. 3. For RL parallel circuits, IT=IR+IL. 4. If a circuit contains a resistor in parallel with an inductive reactance, the current and voltage in the resistor are in phase.
All technicians working with refrigerant part of the trucks air condition system must be:
A. Trustworthy B. Honest C. Certified D. Careful