Question

If the number of fauna increases than the flora of
an ecosystem then it is danger because it
increases
(a) percentage of radioactive fallout
(b) percentage of carbondioxide
(c) percentage of oxygen
(d) percentage of diseases

Answer 1

Answer:

d) percentage of diseases

Answer 2

If the number of fauna i.e animals increase in comparison to flora, the ecosystem will be disturbed as there will be increase in the percentage of carbon dioxide.

Explanation:

• The plants undergo photosynthesis and produce oxygen for other organisms by utilizing carbon dioxide.
• Animals, in return utilize the oxygen for respiration and produce carbon dioxide. If the number of animals increases, the level of carbon dioxide will increase causing more pollution in the environment and cause a major imbalance to the ecosystem.
• The amount of oxygen will reduce as the flora is decreasing. Oxygen is required for many life processes.