The Ailing Planet: the Green Movement's Role NCERT Solutions Class 11 PDF 2026

Ans: Several lines in the text support the title, indicating the poor health of the Earth:
1. "The earth’s vital signs reveal a patient in declining health."
2. "Are we to leave our successors a scorched planet of advancing deserts, impoverished landscapes and ailing environment?"
3. "...the environment has deteriorated so badly that it is 'critical' in many of the eighty-eight countries investigated."
4. "We have shifted—one hopes, irrevocably—from the mechanistic view to a holistic and ecological view of the world."

Ans: Inside the cage at the zoo in Lusaka, there is no animal, but a mirror where the visitor sees their own reflection. This powerful notice signifies that human beings are the most dangerous animals on the planet. Through endless greed, deforestation, overfishing, and pollution, humans have caused more destruction to the Earth and its biological systems than any other species in history.

Ans: According to Lester R. Brown, the earth has four principal biological systems: fisheries, forests, grasslands, and croplands. Due to an exploding human population and the endless demand for protein, fisheries are collapsing from overfishing. Forests are being decimated to obtain firewood for cooking and space for housing. Grasslands are being overgrazed and turned into barren wastelands, and croplands are deteriorating due to over-cultivation. Human claims on these systems have reached an unsustainable level, leading to their rapid depletion.

Ans: The author states that it took humanity more than a million years to reach the first billion. By the year 2000, it had reached around six billion. Rapid population growth directly leads to increased poverty, unemployment, and an unbearable strain on the earth's biological systems. As the population grows, the demand for food, housing, and resources skyrockets, causing massive deforestation and the depletion of natural resources, making survival difficult for future generations.

Ans: The Green Movement started in 1972 when the world’s first nationwide Green party was founded in New Zealand. Its impact was massive; it irrevocably shifted human consciousness from a mechanistic view of the world to a holistic, ecological view.

Ans: The holistic and ecological view treats the Earth not as an inanimate machine to be exploited, but as a living organism. It implies that the Earth has its own metabolic needs and vital processes, which we must respect and preserve for survival.

Ans: The First Brandt Report, which dealt with international development and ecology, raised a chilling question: "Are we to leave our successors a scorched planet of advancing deserts, impoverished landscapes and ailing environment?"

Ans: Popularized in 1987 by the World Commission on Environment and Development, sustainable development means "development that meets the needs of the present, without compromising the ability of future generations to meet their needs."

Ans: Article 48A states that "the State shall endeavour to protect and improve the environment and to safeguard the forests and wildlife of the country." However, the author tragically notes that laws in India are neither respected nor enforced.

Ans: Dr. Myers called tropical forests the "powerhouse of evolution" because they are home to millions of species of plants and animals. Destroying these forests means wiping out these species and stopping the evolutionary process.

Ans: This profound statement completely shifts human perspective on environmental responsibility. Historically, humans believed they inherited the Earth from their ancestors, giving them the right to use and exhaust its resources as they pleased. However, Lester Brown argues that we are actually "borrowing" the Earth from the future generations (our children). When you borrow something, you are morally obligated to return it in the same, if not better, condition. Thus, this statement powerfully advocates for sustainable development and the immediate conservation of natural resources.

Ans: Nani Palkhivala states that population explosion is the primary cause of environmental degradation. A rapidly growing population puts an immense, unsustainable burden on the Earth's principal biological systems. It leads to the collapse of fisheries due to overfishing to meet protein demands. Forests are ruthlessly decimated to provide firewood for cooking and space for housing. Overgrazing turns grasslands into deserts, and croplands deteriorate from over-farming. The author concludes that controlling population growth through voluntary family planning and education is the only way to save the planet and improve the quality of human life.

Ans: Margaret Thatcher famously stated: "No generation has a freehold on this earth. All we have is a life tenancy—with a full repairing lease." This means that no human generation owns the Earth permanently. We are merely tenants who live here for a short lifetime. Because we are tenants, it is our primary duty to "repair" and maintain the property (the environment) for the next tenants. This perfectly aligns with the chapter's central theme of sustainable development and the moral responsibility of the current generation to stop environmental degradation.

Ans: This powerful statement highlights the destructive nature of human civilization. Before humans arrived or established massive civilizations, the Earth was covered in lush, life-sustaining forests ("Forests precede mankind"). However, wherever humans have settled, they have recklessly cut down trees for timber, agriculture, and fuel. Without trees, the topsoil washes away, the water cycle is disrupted, and lush lands eventually turn into barren wastelands. Therefore, the legacy that human interference leaves behind is advancing deserts ("deserts follow").

Ans: Yes, the issues raised are arguably more relevant today than they were in 1994. The global population has crossed 8 billion, putting even more strain on resources. Deforestation in the Amazon, global warming, the collapse of marine ecosystems, and extreme climate change events are daily realities. Palkhivala's warnings about the "ailing planet" have become an urgent crisis, making the need for sustainable development and population control more critical than ever.

Ans: The literary device used is Personification and Metaphor. The Earth is personified as a living human patient whose medical "vital signs" (like forests, clean air, and water) are failing, implying that the planet is critically ill and requires immediate "medical" (environmental) intervention to survive.

Ans: The author states that poverty and population growth are caught in a vicious cycle. More children do not mean more workers; they merely mean more people without work. Population growth hinders economic development, which keeps people poor. Conversely, poverty drives people to have more children for labor, perpetuating the problem.

Ans: In developing nations, the primary reason for the rapid depletion of tropical forests is the desperate need for firewood for cooking. The author notes a tragic irony that, in some places, "what goes under the pot now costs more than what goes inside it."

Ans: The author compares the shift from a mechanistic to a holistic view to the revolutionary shift introduced by Copernicus in the 16th century, who first taught mankind that the earth and the other planets revolved around the sun, fundamentally changing how humans saw the universe.