Directions: Below given is a report with four blanks. Fill those blanks with the options provided to make it a sensible one.

Endangered species are living things whose population is _(1)_ being extinct. Thousands of species are included in this category. The International union for the conservation of nature and natural resources published a list of threatened mammals, birds, reptiles, amphibians, and plants. Plants and animals hold medicinal, agricultural, ecological, commercial and aesthetic/recreational value. Endangered _(2)_ future generations can experience their presence and value. Millions of years before the birth of humans, extinction of living things was linked to geological and climate changes, _(3)of the environment. Environmental change is still the primary cause of the extinction of animals, but now the changes are greatly accelerated by human activity. Clearing land for farms and towns, lumbering, mining, building dams, and draining wetlands; all alter the environment so extensively that ecosystems may be completely destroyed. With the _(4)__ food, shelter and clothing; and constantly demanding more energy-using devices, the temptation to exploit land for human use without regard for consequences is great.

P. the effects of which were translated into major alteration Q. decreasing so fast that they are close to R. species must be protected and saved so that the S. burgeoning human population requiring