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