Home › GMAT › verbalability › Reading Comprehension › Lester Brown points out that the earth's four pr…
Lester Brown points out that the earth's four principal biological systems — fisheries, forests, grasslands and croplands — form the foundation of the global economic system and supply most of our raw materials. When human claims on these systems reach an unsustainable level, fisheries collapse, forests disappear, grasslands turn into wasteland, and croplands deteriorate. It can be inferred that when human demands on the biological systems become unsustainable:
Aindustry switches entirely to minerals
Bpopulation growth automatically stops
Cthe productivity of those systems is impaired and they collapse
Dthe systems regenerate faster
Answer & Solution
Correct answer: C. the productivity of those systems is impaired and they collapse
The passage says unsustainable demand impairs productivity, causing the systems to collapse.
Related questions
According to the same passage, most ozone-depleting chemicals in 1996 compared with 1987 hRead: "Newton, an English scientist, formulated three laws of motion that became the foundRead: "Newton, an English scientist, formulated three laws of motion that became the foundRead: "Newton, an English scientist, formulated three laws of motion that became the foundRead: "Photosynthesis is the process by which green plants use sunlight to synthesise foodRead: "Photosynthesis is the process by which green plants use sunlight to synthesise foodThe growth of world population is one of the strongest factors distorting the future of huThe growth of world population is one of the strongest factors distorting the future of hu