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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. Chemical compounds that persist in the environment and retain biological activity for long times
Persistent organic pollutants
Contour plowing
Micorrhizal symbiosis
Inorganic pesticides
2. 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
Chronic effects
Integrated pest management
Pest resurgence
Sheet erosion
3. Chemicals that kill plants
Microbial agents and biological controls
Chlorinated hydrocarbons
Herbicides
Subsoil
4. Plants that grow for more than two years
Organophosphates
Strip farming
Perennial species
Mulch
5. The removal of thin layers of soil as little rivulets of running water gather and cut small channels in the soil
Microbial agents and biological controls
Rill erosion
Terracing
Contour plowing
6. Plants that can be planted immediately after harvest to hold and protect the soil
Locavore
Cover crops
Insecticides
Pest resurgence
7. Including poisoning and illnesses caused by relatively high doses and accidental exposures
Mulch
Organophosphates
Acute effects
Biocides
8. Water saturation of soil that fills all air spaces and causes plant roots to die from lack of oxygen; a result of over irrigation
Strip farming
Insecticides
Terracing
Water logging
9. Systems - such as minimum till - conserve-till - and no-till - that preserve soil - save energy and water - and increase crop yields
Reduced tillage systems
Gully erosion
Acute effects
Surface soil
10. 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
Insecticides
Chronic effects
Perennial species
11. Someone who eats locally grown - seasonal food
Locavore
Cover crops
Economic thresholds
Fungicides
12. In pest management - the point at which the cost of pest damage exceeds the costs of pest control
Subsoil
Economic thresholds
Insecticides
Fungicides
13. Peeling off thin layers of soil from the land surface; accomplished primarily by wind and water
Water logging
Natural organic pesticides
Sheet erosion
Salinization
14. Kill fungi
Fungicides
Perennial species
Locavore
Pest resurgence
15. A process in which mineral salts accumulate in the soil - killing plants; occurs when soil in dry climates are irrigated profusely
Locavore
Salinization
Inorganic pesticides
Economic thresholds
16. 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
Natural organic pesticides
Chlorinated hydrocarbons
Microbial agents and biological controls
Terracing
17. Kill insects
Mulch
Insecticides
Strip farming
Sheet erosion
18. Toxic gases such as methyl bromine that are used to kill pests
Fumigants
Microbial agents and biological controls
Gully erosion
Salinization
19. A broad-spectrum poison that kills a wide range of organisms
Reduced tillage systems
Contour plowing
Fungicides
Biocides
20. Protective ground cover - including both natural products and synthetic materials that protects the soil - save water - and prevent weed growth
Micorrhizal symbiosis
Integrated pest management
Mulch
Rill erosion
21. 'botanicals' or organic compounds naturally occurring in plants - animals or microbes that serve as pesticides
Rill erosion
Economic thresholds
Fumigants
Natural organic pesticides
22. Any chemical that kills - controls - drives away - or modifies the behavior of a pest
Strip farming
Biocides
Water logging
Pesticide
23. Organic molecules to which phosphate group(s) are attached
Organophosphates
Sheet erosion
Surface soil
Water logging
24. Inorganic chemicals such as metals - acids - or bases used as pesticides
Inorganic pesticides
Sheet erosion
Salinization
Acute effects
25. 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
Reduced tillage systems
Natural organic pesticides
Integrated pest management
Subsoil
26. 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
Micorrhizal symbiosis
Rill erosion
Inorganic pesticides
Sheet erosion
27. Hydrocarbon molecules to which chlorine atoms are attached
Inorganic pesticides
Acute effects
Subsoil
Chlorinated hydrocarbons
28. Removal of layers of soil - creating channels or ravines too large to be removed by normal tillage operations
Economic thresholds
Water logging
Gully erosion
Organophosphates
29. 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
Sheet erosion
Strip farming
Persistent organic pollutants
Gully erosion
30. Plowing along hill contours reduces erosion
Fumigants
Contour plowing
Cover crops
Biocides
31. Conversion of productive lands to desert
Microbial agents and biological controls
Sheet erosion
Rill erosion
Desertification
32. 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
Integrated pest management
Chlorinated hydrocarbons
Acute effects
33. Include cancer - birth defects - immunological problems - endometriosis - neurological problems - Parkinson's disease - and other chronic degenerative diseases
Cover crops
Chronic effects
Surface soil
Chlorinated hydrocarbons
34. Beneficial microbes (bacteria or fungi) that can be used to suppress or control pests
Microbial agents and biological controls
Persistent organic pollutants
Perennial species
Contour plowing
35. A rebound of pest populations due to acquired resistance to chemicals and nonspecific destruction to natural and competitors by broad scale pesticides
Pest resurgence
Economic thresholds
Community supported agriculture
Fumigants