Which of the following is the least efficient irrigation method?
A. gravity flow irrigation
B. center pivot with low-pressure sprayer
C. drip irrigation
D. center pivot with LEPA sprinkler
Answer: A
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Besides Afghanistan, death rates in Central Asian states are in the single digits per 1,000 population
Indicate whether the statement is true or false
Which varna group is at the top of the Hindu caste system?
A) Kshatriyas B) Shudras C) Dalits D) Brahmins E) Vaishyas
Which of the following best matches the description?Organisms that enter a population from elsewhere are involved in
A. exponential growth phase. B. age distribution. C. lag phase. D. r-strategist. E. dispersal. F. emigration. G. K-strategist. H. environmental resistance. I. density-dependent limiting factor. J. density-independent factor. K. immigration. L. population density. M. death phase. N. stable equilibrium phase. O. biotic potential. P. carrying capacity.
Which of the following bands are NOT used by the Earth-sensing satellites mentioned in the text?
A) X-rays B) Color infrared C) Panchromatic D) Thermal infrared E) Visible red