Compost

Q.

What is natural manure? how to prepare it? give two examples.

Q.

What are the three ways in which we can manage biodegradable wastes? [3 MARKS]

Q. How does earthworm helpful for farmers

Q.

Question 3 (a)

What do you do with the leftover food at home?

Q.

Question 1 (b)

Have you seen any other organism besides redworms, in your pit? If yes, try to find out their names. Draw pictures of these.

Q.

Question 13

Beera, a farmer would clear his field every day and burn dry leaves fallen on the ground. After some time, he found that those people living in huts near his field were suffering from cough and breathing problems.

(a) Can you explain why?

(b) Also, suggest an environment-friendly way to dispose of the dry leaves.

Q.

The rotting and conversion of some materials into manure is called ___.

1. scraping

2. logging

3. composting

4. recycling

Q.

Question 8

Correct the definition of certain terms given below by changing only one word.

(a) Compost: Substances converted into manure for use in industries.

(b) Landfill: Garbage buried under water in an area.

(c) Recycling: Reuse of unused material in the same or another form.

Q.

State with reason any two possible consequences of elimination of decomposers from the Earth.

Q. Dried leaves and rotten vegetable wastes can be made useful by ________ .

1. treating them with acids
2. converting them to compost
3. recycling them
4. burning them to save space

Q.

Which of the following is useful components of garbage?

1. Iron pieces
2. Plastics
3. Glass
4. Vegetable waste

Q.

Which of the following is a useful component of garbage?

1. Glass

2. Iron pieces

3. Plastics

4. Vegetable waste

Q.

Red worms can survive in very hot surroundings.

1. True

2. False

Q. Landfill brief description ...

Q.

Name the type of kitchen waste which is used for preparing the compost?

Q.

Question 2

If you dump kitchen waste in a pit, it may, after sometime

(a) convert into compost

(b) convert into vermicompost

(c) remain as such

(d) remain forever in its dried form

Q.

Question 6

Do you think it is better to use compost instead of chemical fertilisers? Why?

Q.

Question 14

Put a tick (right) against the garbage items given in table which could be converted into manure. Put a cross (Wrong) against the others.

$\begin{array}{cccc}\text{Garbage items}& \text{Make manure or not}& \text{Garbage items}& \text{Make manure or not}\\ \left(i\right)\text{Egg shells}& & \left(vi\right)\text{Nails and screws}& \\ \left(ii\right)\text{Straw}& & \left(vii\right)\text{Plastic bangles}& \\ \left(iii\right)\text{Dry flowers}& & \left(viii\right)\text{Left-over-food}& \\ \left(iv\right)\text{Pebbles}& & \left(ix\right)\text{Steel broken vessel}& \\ \left(v\right)\text{Broken pieces of glass}& & \left(x\right)\text{Dead animals}& \end{array}$

Q.

Why are earthworms called 'farmer's friend'?

1. They help in vermicomposting

2. They consume non-biodegradable wastes

3. They make the soil humid

4. They act as insecticides

Q.

Question 10

To what use can you put the following kinds of garbage and how?

(a) Rotting smelly garbage.
(b) Dry leaves collected in a garbage.
(c) Old newspapers.

Q.

Correct the definitions of certain terms given below by changing only one word.

(i) Compost: Substances converted into manure for use in industries.

(ii) Landfill: Garbage buried underwater in an area.

(iii) Recycling: Reuse unused material in the same or another form.

Q. The degrading and conversion of organic waste materials into manure is called

1. Recycling
2. Composting
3. Garbage
4. Land fill

Q.

A gardener was burning a garbage heap of dried leaves. Was he right in doing so? If not, what should have been done instead? [2 MARKS]

Q.

A compost prepared by turning farm waste material including animal waste into manure using earthworms is called __.

Q.

Which kind of garbage is not converted into compost by the redworms?
[1 mark]
[NCERT Textbook Q1(a)]
[Composting]

Q.

Name a method to dispose solid waste?

Q. is a method of decomposing and converting organic waste material into manures for plants.

1. Oxidation
2. Composting
3. Oxygenation

Q. Which of the following is a good practice concerning the garbage collected from our houses?

1. Organic wastes should be dumped in the garden
2. Organic wastes should be thrown in public places
3. Organic wastes should be dumped in compost pit
4. Organic wastes should be thrown on road side

Q.

Which of these make manure?

1. Food

2. Plastics

3. All of these

4. Metals

Q.

Why are earthworms called 'farmer's friend'?

1. They improve soil quality.
2. They make soil humid.
3. They consume non-biodegradable waste.
4. They act as insecticide.