Q.43 अतिशोषण पर कौन विलुप्त हुआ है? (1) स्टीलर गाय (2) लेन्टाना (3) पेसेन्जर कबूतर (4) दोनो (1) व (3) दोनो
Excessive exploitation of a species, whether a plant or animal reduces size of its population such that it becomes vulnerable to extinction. Dodo, passenger pigeon and Steller's sea cow have become extinct in the last 500 year due to over-exploitation by humans.