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WorksheetsMG05 Composting
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
According to the National Composting Council, how much compostable material does the average US household produce annually?
a)
1 ton
b)
650 lbs
c)
350 lbs
d)
100 lbs
2.
In sandy soils, added compost will:
a)
Lubricate the sand particles, allowing them to move freely
b)
Ensure anaerobic activity within the sand structures
c)
break the sand particles down to clay/silt sized particles
d)
bind sand particles together, thereby improving water holding and aeration
3.
In heavy soils, added compost will:
a)
Enhance anaerobic activity within the clay and silt structures
b)
Loosen bonds between clay particles to allow for easier movement of water and roots
c)
bind the clay particles together to make them more digestibie for earthworms
d)
form and bind clay particles into platy structures
4.
Compost is:
a)
Chemically and structurally the same regardless of the source material
b)
A significant short-term source of the three most critical nutrients
c)
a factor in the soil's ability to hold and supply nutrients
d)
chemically inert
5.
Which of the following is a decomposer?
a)
Cattails
b)
Millipedes
c)
Moles
d)
Lepidoptera
6.
Microbes need carbon ( C ) for energy and nitrogen ( N ) for growth. What is the optimal C:N ratio for composting?
a)
1:1
b)
2:1
c)
10:1
d)
30:1
7.
For the home composter, organic matter for composting falls into two categories:
a)
Carbs and proteins
b)
Blacks and tans
c)
Green and browns
d)
Drys and wets
8.
Anaerobic microbes create compost by:
a)
fermentation
b)
photosynthesis
c)
oxidation
d)
aerobic separation
9.
The desirable compost pile temperature for killing weed seeds and efficiently producing compost is:
a)
98.6° F
b)
140° F
c)
175° F
d)
100° F
10.
Microbes only break down moist materials. What is the best guideline for maintaining a desirable moisture level in a compost pile?
a)
Water thoroughly once a week
b)
Water as necessary to maintain a compost pile that is as damp as a wrung-out sponge.
c)
Water until a puddle appears at the base of the pile.
d)
Keep a drip irrigation hose on constantly
11.
The minimum dimensions needed to achieve heat in a compost pile are:
a)
there is no minimum
b)
3' X 3' X 3'
c)
5' X 5' X 5'
d)
12' X 12' X 12'
12.
Composter microbes work best in an environment that is:
a)
mildly acidic
b)
allowed to dry thoroughly between waterings
c)
given applications of lime
d)
maintained at a temperature of 160° F
13.
A reason for a rotten smelling compost pile is:
a)
anaerobic conditions in the pile
b)
too high a C:N ratio
c)
too many "browns"
d)
too low an ambient temperature
14.
An ammonia odor in the pile can be corrected by:
a)
adding nitrogen fertilizer
b)
adding more "greens" to the pile
c)
watering thoroughly every day
d)
adding more "browns" to the pile
15.
Vermicomposting results in a product that is best used as a/an:
a)
fertilizer
b)
lure for earthworms in the garden
c)
inoculate for a compost pile
d)
potting soil
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