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This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
1. |
DIRECTIONS: Match Column-I with Column-II and select the correct answer using the codes given below the columns. Column-I Column-II A. Blue dustbins (p) Plastics, metal and glass B. Green dustbins (q) Wastes that rot completely when buried in soil C. Vermi composting (r) Method of making compost D. Red worms (s) Useful in vermi composting |
A. | \[A\to (p);B\to (q);C\to (r);D\to (s)\] |
B. | \[A\to (q);B\to (p);C\to (r);D\to (s)\] |
C. | Balanced |
D. | \[A\to (p);B\to (q);C\to (s);D\to (r)\] |
Answer» B. \[A\to (q);B\to (p);C\to (r);D\to (s)\] | |
2. |
DIRECTIONS: Read the passage(s) given below and answer the questions that follow Passage - 2 If you collect the garbage from your home and put it in separate pits covered with soil for a few days. You will find that something in the garbage rots. They form manure which is used for plants. The rotting and conversion of some materials into manure is called |
A. | composting |
B. | decomposing |
C. | Flossing |
D. | All of these are correct |
Answer» B. decomposing | |
3. |
After a landfill site has been converted into a park or playground, no construction is allowed over it for a period of\[A\times 10\]years, where A is equal to |
A. | 1 |
B. | 2 |
C. | Enamel |
D. | 8 |
Answer» C. Enamel | |
4. |
Low lying land used to dispose garbage is called |
A. | garbage dump |
B. | landfill |
C. | Enamel |
D. | None of these |
Answer» C. Enamel | |
5. |
Banana peel : ______ : : plastic : non-biodegradable. |
A. | decomposer |
B. | biodegradable |
C. | Any two bodies having some mass. |
D. | fruit |
Answer» C. Any two bodies having some mass. | |
6. |
The organisms that are used for vermicomposting are |
A. | a type of earthworm |
B. | called red worm |
C. | \[N\text{ }m\text{ }k{{g}^{2}}\] |
D. | None of the above |
Answer» D. None of the above | |
7. |
Which of the following items when mixed in wastes help red worms in grinding their food? |
A. | Powdered egg shells |
B. | Powdered sea shells |
C. | Negative |
D. | None of these |
Answer» D. None of these | |
8. |
The exposed garbage bin encourages the spread of |
A. | non-infectious diseases |
B. | deficiency diseases |
C. | p > q |
D. | infectious diseases |
Answer» E. | |
9. |
My Which of the following processes reduce pollution from animal excreta and organic waste from kitchen and also used economically in producing energy? |
A. | Recycling. |
B. | Using them for producing biogas. |
C. | 0.3 kg |
D. | Using them directly as bio fertilizers. |
Answer» C. 0.3 kg | |