Which of the following statements about monoculture farming is true?
A) Monoculture farming is an agricultural practice that increases a crop's susceptibility to insect pests.
B) Monoculture farming prohibits the use of crops that have been genetically modified.
C) Because of the risk of environmental degradation, monoculture farming is illegal in the United States.
D) Monoculture farming prohibits the use of synthetic fertilizers and pesticides.
A
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El Chichon appears to have had a greater impact on atmospheric temperatures than did Mount St. Helens
Indicate whether the statement is true or false
What will contain the highest biodiversity?
A. Mature A horizon soil B. Mature C horizon soil C. Immature soil D. Young soil
Which of the following best matches the description?Interaction of materials that increases the potential for harm.
A. waste minimization B. CERCLA C. synergism D. chronic toxicity E. ignitability F. toxicity G. National Priority List H. RCRA I. reactivity J. corrosiveness K. hazardous wastes L. LD50 M. acute toxicity N. Superfund O. threshold levels
Considering all major biogeochemical cycles, the human input is ________
A) making major alternations in most cycles B) insignificant C) limited to the carbon cycle D) never likely to be important E) several times larger than the natural fluxes of mass and energy