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Test your basic knowledge |
Farming
Start Test
Study First
Subject
:
agriculture
Instructions:
Answer 35 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Peeling off thin layers of soil from the land surface; accomplished primarily by wind and water
Water logging
Sheet erosion
Chlorinated hydrocarbons
Chronic effects
2. Systems - such as minimum till - conserve-till - and no-till - that preserve soil - save energy and water - and increase crop yields
Chlorinated hydrocarbons
Reduced tillage systems
Chronic effects
Community supported agriculture
3. An ecologically based pest-control strategy that relies on natural mortality factors - such as natural enemies - weather - cultural control methods - and carefully applied doses of pesticides
Desertification
Pesticide
Persistent organic pollutants
Integrated pest management
4. A process in which mineral salts accumulate in the soil - killing plants; occurs when soil in dry climates are irrigated profusely
Salinization
Contour plowing
Water logging
Community supported agriculture
5. Planting different kinds of crops alternating strips along land contours; when one crop is harvested - the other crop remains to protect the soil and prevent water from running straight down a hill
Microbial agents and biological controls
Mulch
Strip farming
Chronic effects
6. Kill insects
Insecticides
Chlorinated hydrocarbons
Persistent organic pollutants
Terracing
7. Plants that grow for more than two years
Perennial species
Water logging
Micorrhizal symbiosis
Organophosphates
8. Chemical compounds that persist in the environment and retain biological activity for long times
Rill erosion
Persistent organic pollutants
Perennial species
Terracing
9. The first true layer of soil; layer in which organic material is mixed with mineral particles; thickness ranges from a meter of more under virgin prairie to zero in some desserts
Surface soil
Economic thresholds
Desertification
Fungicides
10. Inorganic chemicals such as metals - acids - or bases used as pesticides
Integrated pest management
Insecticides
Biocides
Inorganic pesticides
11. Plants that can be planted immediately after harvest to hold and protect the soil
Chlorinated hydrocarbons
Gully erosion
Community supported agriculture
Cover crops
12. Shaping the land to cerate level shelves of earth to hold water and soil; requires extensive hand labor or expensive machinery - but it enables farmers to farm very steep hillsides
Terracing
Herbicides
Microbial agents and biological controls
Subsoil
13. Toxic gases such as methyl bromine that are used to kill pests
Inorganic pesticides
Salinization
Fumigants
Microbial agents and biological controls
14. A layer of soil beneath the topsoil that has a lower organic content and higher concentrations of fine mineral particles; often contains soluble compounds and clay particles carried down by percolating water
Fungicides
Insecticides
Subsoil
Persistent organic pollutants
15. In pest management - the point at which the cost of pest damage exceeds the costs of pest control
Economic thresholds
Chlorinated hydrocarbons
Pesticide
Reduced tillage systems
16. An association between the roots of most plant species and certain fungi. The plant provides organic compounds to the fungus - while the fungus provides water and nutrients to the plant
Acute effects
Sheet erosion
Chronic effects
Micorrhizal symbiosis
17. Organic molecules to which phosphate group(s) are attached
Pesticide
Pest resurgence
Water logging
Organophosphates
18. Removal of layers of soil - creating channels or ravines too large to be removed by normal tillage operations
Salinization
Subsoil
Gully erosion
Economic thresholds
19. Hydrocarbon molecules to which chlorine atoms are attached
Chlorinated hydrocarbons
Fungicides
Organophosphates
Insecticides
20. 'botanicals' or organic compounds naturally occurring in plants - animals or microbes that serve as pesticides
Natural organic pesticides
Acute effects
Subsoil
Inorganic pesticides
21. Chemicals that kill plants
Community supported agriculture
Herbicides
Integrated pest management
Contour plowing
22. Including poisoning and illnesses caused by relatively high doses and accidental exposures
Terracing
Water logging
Natural organic pesticides
Acute effects
23. Water saturation of soil that fills all air spaces and causes plant roots to die from lack of oxygen; a result of over irrigation
Herbicides
Water logging
Rill erosion
Mulch
24. Conversion of productive lands to desert
Desertification
Sheet erosion
Micorrhizal symbiosis
Chronic effects
25. Beneficial microbes (bacteria or fungi) that can be used to suppress or control pests
Microbial agents and biological controls
Desertification
Gully erosion
Biocides
26. A rebound of pest populations due to acquired resistance to chemicals and nonspecific destruction to natural and competitors by broad scale pesticides
Water logging
Pest resurgence
Integrated pest management
Microbial agents and biological controls
27. A program in which you make an annual contribution to a local farm in return for weekly deliveries of a 'share' of whatever the farm produces
Community supported agriculture
Surface soil
Sheet erosion
Locavore
28. Someone who eats locally grown - seasonal food
Perennial species
Mulch
Fumigants
Locavore
29. A broad-spectrum poison that kills a wide range of organisms
Biocides
Desertification
Chlorinated hydrocarbons
Natural organic pesticides
30. Protective ground cover - including both natural products and synthetic materials that protects the soil - save water - and prevent weed growth
Organophosphates
Pesticide
Mulch
Gully erosion
31. Any chemical that kills - controls - drives away - or modifies the behavior of a pest
Microbial agents and biological controls
Micorrhizal symbiosis
Pesticide
Inorganic pesticides
32. Kill fungi
Pesticide
Fungicides
Biocides
Desertification
33. Plowing along hill contours reduces erosion
Chronic effects
Contour plowing
Pest resurgence
Sheet erosion
34. The removal of thin layers of soil as little rivulets of running water gather and cut small channels in the soil
Mulch
Rill erosion
Microbial agents and biological controls
Organophosphates
35. Include cancer - birth defects - immunological problems - endometriosis - neurological problems - Parkinson's disease - and other chronic degenerative diseases
Gully erosion
Chronic effects
Locavore
Surface soil