The efficiency of irrigation water use is ________ in most countries. One of the reasons for this is ________.
A. High; the technology to distribute the water where it is needed
B. High; the abundance of water
C. Low; evaporative losses from unprotected water channeling
D. High; the careful use of water because it is so expensive
E. Low; the lack of availability of technology to distribute the water where it is needed
Answer: C
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Indicate whether the statement is true or false.
The relationship between a parasitic wasp and its caterpillar prey is a type of
A) cultural control. B) natural enemies control. C) genetic control. D) natural chemical control.
What is the correct systematic name for the compound with the formula CuCl2?
A) cupric chloride B) cuprous chloride C) copper(II) chloride D) copper(II) chlorine
A resource that is naturally produced at rates similar to our use can be called a(n) ________
A) renewable resource B) human resource C) cultural resource D) natural resource E) economic resource