Answer:
Option D, only II, III, and IV
Explanation:
Complete Question
Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes would fall under this category?
I) Keystone predators have a marked effect on species diversity.
II) Green plants produce the oxygen we breathe.
III) The presence of land plants builds soil.
IV) The presence of diverse wetlands helps in flood control.
A) only II and IV
B) only I and III
C) only I, II, and IV
D) only II, III, and IV
Solution -
The services of ecosystem has been classified into four groups
a) Provisioning – Where essential abiotic and biotic substance are produces such as production of food and water, reproducing offspring etc.
b) Regulating – the ecosystems is controlled through environmental factors such as control of climate and disease
c) Supporting – Ecosystem support the activities that are essential for survival. Primarily includes all nutrient cycles, oxygen generation etc.
d) Cultural – Provide aesthetic view and recreational benefits
Option II co
mes under supporting service of ecosystem
Option III co
mes under Provisioning service of ecosystem
Option IV co
mes under Regulating service of ecosystem
Hence, option D is correct
