How do human beings influence the ecology of a region?

(i) They utilise the vegetation and wildlife.
(ii) The greed of human beings leads to overutilisation of these resources.
(iii) They cut trees and Kill animals, thereby creating an ecological imbalance.
(iv) As a result, some of the plants and animals have reached on the verge of extinction.
(v) Due to the insensitivity to our environment and lack of sustainable development.