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Decay and composting

Total questions: 19

Worksheet time: 8mins

Name
Class
Date
1.

Mark three fields involved with the use of microorganisms

a)

sport

b)

industry

c)

agriculture

d)

medicine

2.
Moisture helps the compost pile to decompose
a)
slower
b)
faster
3.
Composting occurs
a)
within hours
b)
within a few days
c)
over an extended period of time
d)
only when you turn the pile
4.
The composting pile must
a)
stay cool
b)
get HOT
c)
stay at a moderate temperature
d)
stay moist and cold
5.
Which organism help to breakdown or decompose waste and dead organisms?
a)
The organisms and waste breakdown on their own.
b)
Only fungi
c)
Only bacteria
d)
Fungi, bacteria and other decoposers such as worms and beetles.
6.
What is the role of decomposition in the environment?
a)
Decomposition isn't really that important.  It simply makes waste and dead organisms smaller so they don't take up as much room.
b)
When organisms are decomposed, the nutrients such as carbon and nitrogen are returned to the soil.
c)
Composition just makes new soil.
d)
When organisms decompose they return the food they ate to the environment.
7.
The graph shows temperatures in a composting bin.
 
During which days is the most composting happening? 
a)
May 8 to May 9
b)
May 9 to May 15
c)
May 30 to June 2
d)
June 2 to June 6
8.

What can not be composted

a)

meat scraps

b)

apple peels

c)

grass clippings

d)

banana peels

9.

Why is it important to add soil to your compost pile?

a)

to hide the trash

b)

to break down the compost

c)

to add extra weight

d)

to disguise the garbage

10.

After adding soil, what is important to do?

a)

let sit in the hot sun with no water

b)

lightly water the compost pile

c)

heavily water the compost pile

d)

cover up and let it compost

11.

Why is it important to stir your compost?

a)

To mix up the pile

b)

To help move oxygen

c)

To get rid of the insects

d)

To keep it moist

12.

How long does it take for the compost to decompose?

a)

1 week

b)

1 month

c)

1 year

d)

several months

13.

What should you do with your compost once it is decomposed?

a)

Use in garden

b)

Throw away

c)

add 5 more gallons of water

d)

take out all of the worms before using

14.

This method involves filling a pit with biodegradable waste

a)

Land fill

b)

Burning

c)

Composting

d)

Non of above

15.

How many types of waste are there ?

a)

4

b)

1

c)

5

d)

2

16.

What are the types of waste ?

a)

Biodegradable and non biodegradable

b)

Polluted and non polluted

c)

disposable and non disposable

d)

non of above

17.

Is composting a good method for disposing ?

a)

Yes

b)

No

c)

Maybe

18.

________ cannot be recycled

a)

Glass

b)

Vegetable

c)

Silver foil

d)

Paper

19.

Burning is a good method ?

a)

True

b)

False