Classify the following into renewable and non-renewable resources

(i) trees (ii) fish (iii) petroleum (iv) coal (v) iron-ore (vi) water

Renewable resources are those inexhaustible resources capable of being replenished easily. Water, trees and fish are the renewable resources.

Non-renewable resources are those resources that are likely to be exhausted or depleted on use. Petroleum, coal and iron ore are non-renewable resources. The pace of re-occurrence of these resources is slower than that of their exploitation.