Master Gardener Handbook Quiz on Chapter 6: Composting Questions 1) Composting is the controlled, biological, and chemical decomposition of _________ matter. 2) Compost suppresses some soil-borne diseases. True_______ False_____ 3) Microbes work most efficiently at 140 to 160 degrees Fahrenheit. True______ False______ 4) The mixture of materials containing ________ parts of carbon to one part of nitrogen is considered ideal for composting: a) 10 b) 20 c) 30 d) 50 5) Brown materials, such as fallen leaves, are low in carbon. True_______ False_____ 6) Composting needs oxygen to occur. True_____ False______ 7) One of the following materials does NOT belong in a compost pile: a) egg shells b) wood ash c) cat manure d) farm animal manure 8) Microbes function best when composting materials are about as _______ as a wrung-out sponge. Revised for 2012 9) A compost pile should not be higher or wider than 3 ft. by 3 ft. True____ False______ 10) Full sun is necessary for a composting system. True______ False________ 11) Tumbler units work best when: a) space is limited b) appearance is important c) unwanted pests could be attracted when kitchen scraps are the prime ingredient d) all of the above 12) Temperatures above _______ degrees F. kill composting microbes. 13) Compost can be incorporated into a garden soil at a rate of between 25-50 bushels per __________ square feet of area. a) 500 b) 1,000 c) 2,500 d) 5,000 14) Organic mulch should not be applied more thickly than 3 to 5 inches around trees and shrubs. True_____ False_____ 15) A possible cause of an ammonia odor from a compost bin might be a lack of _______. Answers on next page Revised for 2012 Master Gardener Handbook Chapter 6 Answers Page in Handbook 1) organic 85 2) True 85 3) False (130 to 140 degrees F.) 86 4) c. 30 87 5) False (high in carbon) 87 6) False (can occur with or without oxygen) 88 7) c. cat manure 87, 88 8) damp 88 9) False (5 ft. X 5 Ft.) 89 10) False (Microbes, not sun, drive the decomposition process.) 89 11) d. all of the above 91 12) 160 degrees 93 13) b. 1,000 94 14) False (2 to 3 inches) 95 15) carbon 95 Revised for 2012