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Soil And Agriculture
Test Description: Midterm review
Instructions: Answer all questions to get your test result.
1) A farmer interested in the quality of the soil in her field might use which aspect of soil as a quick indicator of the field's overall fertility?
A
texture
B
pH
C
structure
D
color
2) Deterioration of the soil's fertility and ability to provide ecosystem services is called
A
erosion
B
soil degradation
C
soil pollution
D
succession
3) your friend tells you he's decided not to use pesticides or synthetic chemicals on his farm; instead he'll rely on composting and biological pest control. She is practicing
A
monoculture
B
organic agriculture
C
sustainable agriculture
D
industrial agriculture
4) One of the biggest problems of pesticide use is the fact that
A
farmers must apply pesticides every year
B
pesticides kill important pollinator insects as well as insect pests
C
pesticide manufacturers must create new pesticides every year that cost millions of dollars
D
pesticides reduce the amount of food you can get from a crop, sometimes up to 50%
5) Eating a lot of meat is inefficient because _____ is LOST in transfer between trophic levels
A
10 % of the energy
B
25% of the energy
C
90% of the energy
D
50% of the energy
6) A farmer has an infestation of aphids so he introduces ladybugs, which prey on aphids. He also uses a small dose of pesticide because there are just too many for the ladybugs to eat them all. The farmer's approach to insect pests is
A
biological control
B
integrated pest management
C
chemical control
D
organic pest management
7) Genetic engineering relies on placing a gene from one organism that codes for a desired trait into the _____ of a different organism
A
helix
B
genome
C
amino acid
D
protein
8) Because of the green revolution, between 1961 and 2008, food production
A
did not increase
B
kept pace with population growth
C
increased significantly faster than population growth
D
was mostly organic
9) Industrial food production includes
A
monocultures
B
all of these answers are correct
C
feedlots
D
aquaculture
10) One proven risk of genetically modified crops is
A
the loss of consumer support
B
increased resistance of insects to pesticides because of the pesticide resistance of GM crops
C
the risk of cancer associated with eating GM foods
D
the escape of GM genes into non-GM crops
*select an answer for all questions
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