In this section you have few short passages. After each passage, you will find some items based on the passage. First, read a passage and answer the items based on it. You are required to select your answers based on the contents of the passage and opinion of the author only.
Passage
In its simple form, science has helped man to protect himself from Nature and to overcome In its simple form, science has helped man to protect himself from Nature and to overcome which Nature need to be protected from man. He has used Nature's own gifts, not only of metal but even the human brain, to attack Nature. Forests are being destroyed not only to satisfy need but to provide luxuries. The evil effects of deforestation are already making themselves clearly felt in climatic changes and soil erosion. Man has at last begun to learn that he has to protect if he wants Nature to protect him.
The evil effect of destroying Nature instead of using it is seen in

Options

A. the fall in production of our factories
B. the fall in our standard of living
C. the unfavourable changes in climate
D. frequent occurrence of epidemics