Heat and Energy Exe-6B Very Short Answer ICSE Physics Class-9 Selina Publishers. There is the solutions of Very short Answer type Questions of your latest textbook which is applicable in 2025-26 academic session. Visit official Website CISCE for detail information about ICSE Board Class-9
Heat and Energy Exe-6B Very Short Answer ICSE Physics Class-9 Selina Publishers
| Board | ICSE |
| Class | 9 |
| Subject | Physics |
| Writer / Publication | Concise Selina Publishers |
| Chapter-6 | Heat and Energy |
| Exe-6B | Energy Flow and its Importance |
| Topics | Solution of Exe-6(B) Very Short Answer Type |
| Academic Session | 2025-2026 |
Exercise- 6B Energy Flow and its Importance
ICSE Concise Physics Class-9 Selina Publishers
page -148
Very Short Answer :
Que-1: What is an ecosystem ? Name its two components .
Ans: An ecosystem is defined as a self contained unit of living things and non living things. An ecosystem required Sunlight to maintain its working. The two main components of an ecosystem are following :
1. Abiotic component: It includes all the non-living components such as soll, water, air temperature, rocks, etc.
2. Biotic component: It includes all living components. All flora and fauna comes under biotic component.
Que-2: What is a food chain?
Que-3: State the law which governs the energy flow in an ecosystem.
According to the second law of thermodynamics, when energy is put to work, a part of it is always converted in un-useful form such as heat mainly due to friction and radiation.
Que-4: Give two examples of each biotics and antibiotics.
Ans: Examples of :
- biotic components : trees, animals.
- abiotic components : heat, rain.
Que-5: From where do the tertiary consumers obtain their energy?
Ans: Tertiary consumer obtain energy as food from the secondary consumers.
— end of Heat and Energy Exe-6B Very Short Answer ICSE Physics Class-9 Selina Publishers. solutions :—
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