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प्रश्न
Match the following
| 1. | Biotic factor | Terrestrial Ecosystem |
| 2. | Sewage | Land pollution |
| 3. | Fertilizers | Air pollution |
| 4. | Desert | Water Pollution |
| 5. | Smoke | Animals |
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उत्तर
| 1. | Biotic factor | Animals |
| 2. | Sewage | Water Pollution |
| 3. | Fertilizers | Land pollution |
| 4. | Desert | Terrestrial Ecosystem |
| 5. | Smoke | Air pollution |
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संबंधित प्रश्न
The partially decomposed organic matter is formed by a process called ______.
Human and animal wastes are examples of non-biodegradable waste.
Which one of the following plays an important role in recycling of nutrients on earth?
What happens to the dead organisms of animals and plants?
What are decomposers? What will be the consequence of their absence in an ecosystem?
The micro-organisms that obtain energy from the chemical breakdown of dead organisms is called ______.
Given below are names of some animals.
- Goat
- Human beings
- Cockroach
- Eagle
Which of the above animals form a pair of omnivores?
Read the clues and fill up the blanks given below each of them.
Animals which eat only plants and plant products.
H E ___ B ___ ___ ___ ___ E ___
Match the following Column I with Column II.
| Column I | Column II |
| A. Mesozoic | (i) First land vertebrates |
| B. Devonian | (ii) Proliferation of reptiles |
| C. Palaeocene | (iii) Raise of modern mammals |
| D. Permian | (iv) Radiation of primitive mammals |
| (v) 166 million years |
Enlist desirable traits present in transgenic chicken.
