119 questions across 11 question groups — pick any mix to generate a Science paper with step-by-step answer keys.
Find the odd one out.
5 Q→02Answer the following in one sentece.
19 Q→03Distinguish Between.
2 Q→04complete the Graph/Table.
1 Q→05Answer the following question.
24 Q→06Answer the following question.
4 Q→07Match The Columns/pair.
5 Q→08Observe The Picture And Explain.
1 Q→09MCQ
26 Q→10true or false
20 Q→11Question Answer (2 Marks)
12 Q→One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
| Column ‘A’ | Column ‘B’ |
| (1) Harmful waste | (a) Glass, rubber, carry bags, etc. |
| (2) Domestic waste | (b) Chemicals, pigments, ash, etc. |
| (3) Biomedical waste | (c) Radioactive material |
| (4) Industrial waste | (d) Left over food, vegetables, peelings |
| (5) Urban waste | (e) Bandages, cotton, needles, etc. |
| Column ‘A’ | Column ‘B’ |
| (1) Thermocol (2) Tin cans (3) Woollen socks (4) Wood | (a) 1 year. (b) Infinite duration. (c) 10-15 years (d) 50-100 years |
| Column ‘A’ | Column ‘B’ |
| (1) Banana peels | (a) 10 lakh years. |
| (2) Plastic bags | (b) 200-250 years. |
| (3) Leather shoes | (c) 3-4 weeks |
| (4) Aluminium cans | (d) 40-50 years |
| Column ‘A’ | Column ‘B’ |
| (1) Mining waste | (a) Leaves, flowers, crop residue. |
| (2) Electronic waste | (b) Remains of heavy metals like lead, arsenic, cadmium. |
| (3) Farm waste | (c) Strontium-10, Cerium-141, Barium-140 |
| (4) Radioactive waste | (d) Cell phones, TV sets, Computers |

Answer: C.
View full solution →Answer: A.
View full solution →Answer: B.
View full solution →Answer: D.
View full solution →Answer: B.
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