Which of the following statements is a correct summary of the relationship between the agricultural sector and air pollution?
A) Agriculture has no direct effect on air pollution, but is affected by air pollution problems.
B) Agriculture is a leading cause of many air pollutants, but is not affected by air pollution
problems.
C) Agriculture is neither a source of any air pollutants, nor is it directly affected by air
pollution problems
D) Agriculture is a cause of some air pollutants, but is also affected by some air pollution
problems.
D) Agriculture is a cause of some air pollutants, but is also affected by some air pollution
problems.
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________ is a biochemical test for seed viability. Viable seeds turn red after treatment with this chemical.
Fill in the blank(s) with the appropriate word(s).
All of the following are benefits of organic matter and humus EXCEPT ____
a. loosening clay soils b. improving soil structure c. improving soil nutrient storage d. helping to prevent erosion e. increasing aggregation f. improving the water- and nutrient-holding capacity of coarse or sandy soils
If you accept a position with an organization that promises advancement opportunities, the
organization is providing
a. competencies. b. psychological contracts. c. contributions. d. tangibles. e. inducements.
Diodes that operate in the ultrahigh frequency (UHF) and microwave frequency range are known as
A) unijunction diodes B) zener diodes C) tunnel diodes D) varactors