In this section, you have short passages. After each passage, you will find some items based on the passage. Read the passage carefully and answer the items based on it. You are required to select your answers based solely on the contents of the passage and the opinion of the author.

Passage:

In its simple form, science has helped man to protect himself from Nature and to overcome natural obstacles to movement. But with the advance of science, a situation has arisen in 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.

Climatic changes and soil erosion are results of