8. Abiotic factors are the non-living parts of the environment that have a major influence on living
organisms. Which scenario shows an ecosystem affected by a change in abiotic factor/s?
1. Two lions are fighting over a fresh kill.
II. Extinction of plants and animals due to wildfires.
III. Plants die because of extreme temperature and lack of rainfall.
IV. Birds sit on a horse's back and eat the insects that bite the horse.
A. I and II only B. I and IV only
C.ll and Ill only D. II, III and IV only
9. Global warming affects many processes in biological ecosystems due to a change in abiotic factor/s.
Which of the following changes in natural ecosystems are caused by the ongoing global warming
process?
1. Different species of plants and animals change their habitats and geographical areas.
II. Plants and animals become extinct because of climate change and pollution.
III. Some animals hibemate during winter season to survive.
IV. Forest areas dry out and turn into steppes and desserts.
A. I and II only
B. I, II and Ill only
C. I, II and IV only D. I, II, III and IV
10. Changes in the environment can disrupt the natural balance in the ecosystem. Which of the
following is an example of change in abiotic factor?
A. Air
B. Soil
C. Water
D. Wildfire​