Question

Which of the following statements are true about ecosystem? 

Select the correct answer from the codes: 

1. Ecosystem comprises both biotic and abiotic components. 

2. Solar radiation is the main driving force of the ecosystem. 

3. Ecosystem is a closed system. 

4. Ecosystem does not have its own productivity 

Codes: 

(a) 1 and 2 

(b) 2 and 3 

(c) 1 and 3 

(d) 3 and 4

Answer 1

Correct option: (a) 1 and 2

Explanation:

Ecosystem is the dynamic community of living organism with physical environment. Thus, it comprises of both biotic and abiotic components. Solar energy is the ultimate source of energy in it, so is the main driving force. Dynamic energy transfers occur making it an open system. The autotrophs make the ecosystem’s biotic components selfsufficient.