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