CBSE Class 11 Fundamentals of Physical Geography: Chapter 1 - Geography as a Discipline NCERT Solutions

Solution: The term "Geography" was coined by the ancient Greek scholar Eratosthenes. The word is derived from the Greek words 'geo' (Earth) and 'graphein' (to write or describe). Therefore, geography literally means "the description of the Earth".

Answer: (c) Eratosthenes

Solution: A physical feature is a natural landform or characteristic of the Earth's surface. Among the given options, a Plain is a natural landform. Ports, roads, and water parks are all man-made structures and are considered cultural or human features.

Answer: (b) Plain

Solution: Let's pair the disciplines with their respective fields:

1. Meteorology is the scientific study of the atmosphere and its phenomena, which is closely related to Climatology (C).
2. Demography is the statistical study of populations, especially human beings, and is a key component of Population Geography (A).
3. Sociology is the study of society, social relationships, and social phenomena, aligning with Social Geography (D).
4. Pedology is the study of soil, which is also known as Soil Geography (B).

Therefore, the correct pairing is 1C, 2A, 3D, 4B.

Answer: (d) 1C, 2A, 3D, 4B

Solution: The question "Why?" is fundamentally about understanding the reasons behind a phenomenon, exploring its causes and the resulting effects. Geographers use the "Why?" question to analyze the underlying factors that lead to specific spatial patterns or events.

Answer: (a) Why

Solution: Temporal synthesis refers to the integration and understanding of events and developments over a period of time. While geography often deals with spatial relationships, History is the discipline that primarily focuses on analyzing and synthesizing events chronologically, making it the discipline that attempts temporal synthesis.

Answer: (d) History

Solution: While commuting to school, one observes various cultural features such as roads, buildings (houses, shops, schools), bridges, parks, markets, places of worship, and street furniture. These features are often dissimilar across different areas, reflecting diverse human activities and development.

These cultural features are integral to the study of geography, specifically human geography. They represent the human imprint on the landscape, demonstrating how people modify their environment to suit their needs and cultural practices. Understanding these features helps in analyzing patterns of settlement, land use, economic activities, and social organization.

Answer: Yes, these cultural features should be included in the study of geography because they are essential components of the human-modified landscape and provide insights into human-environment interactions, settlement patterns, and cultural diversity.

Solution: Among the given options, an orange most closely resembles the shape of the Earth. The Earth is not a perfect sphere; it is an oblate spheroid, meaning it is slightly flattened at the poles and bulges at the equator. An orange shares this characteristic: it is generally round but has a slightly flattened top and bottom, with a fuller middle.

We choose the orange because its shape visually represents the Earth's deviation from a perfect sphere, making it a relatable analogy for understanding the Earth's geoid form.

Answer: An orange resembles the shape of the Earth because both are flattened at the poles and bulge at the equator.

Solution: Yes, many schools celebrate Van Mahotsava, a week-long tree-planting festival observed in the first week of July in India. The primary reason for planting numerous trees is to promote afforestation, conserve forests, and raise awareness about environmental protection.

Trees play a crucial role in maintaining ecological balance in several ways:

• Oxygen Production: Through photosynthesis, trees absorb carbon dioxide (a greenhouse gas) from the atmosphere and release oxygen, which is essential for the survival of most living organisms.
• Climate Regulation: Trees help regulate local and global climate by influencing temperature and rainfall patterns.
• Soil Conservation: Their root systems bind the soil, preventing erosion by wind and water, thus maintaining soil fertility.
• Biodiversity Support: Forests provide habitats for a vast array of plant and animal species, supporting biodiversity.
• Water Cycle: Trees contribute to the water cycle through transpiration.

Answer: Trees are planted to promote afforestation and environmental conservation. They maintain ecological balance by producing oxygen, absorbing carbon dioxide, preventing soil erosion, regulating climate, and supporting biodiversity.

Solution: Elephants, deer, earthworms, trees, and grasses are all living organisms that live or grow on Earth. They inhabit various environments across the planet.

The sphere where all these living organisms exist is called the Biosphere. The biosphere is the sum total of all ecosystems on Earth and represents the zone of life.

Important features of the biosphere include:

• Presence of Life: It is characterized by the existence of diverse forms of life, from microscopic organisms to large animals and plants.
• Interdependence: It highlights the intricate web of relationships and interdependence between living organisms and their physical environment (atmosphere, lithosphere, hydrosphere).
• Dynamic Nature: The biosphere is a dynamic system constantly undergoing changes due to natural processes and human activities.
• Spatial Distribution: Life exists in various parts of the Earth, including land (lithosphere), water (hydrosphere), and air (atmosphere), within certain limits.
• Energy Flow and Nutrient Cycling: It involves the continuous flow of energy (primarily from the sun) and the cycling of essential nutrients among living and non-living components.

Answer: These organisms live or grow in the Biosphere. The biosphere is the part of the Earth that supports life, characterized by the presence of diverse living organisms and their interactions with the physical environment.