Question

Human beings can change the abiotic factors by
(a) cutting down trees indiscriminately.
(b) adding harmful substances to the atmosphere.
(c) increasing construction activities.
(d) all the above.

Answer 1

(d) all the above
Human beings change their abiotic factors through a series of activities such as cutting down trees, increasing construction activities and adding harmful substances like wastes and polluted air in the atmosphere.