Population Growth, Regulation & Biodiversity Conservation
Population Growth and Regulation
📈 Population: Growth and regulation
Population ecology studies the factors that affect the size, distribution, density, and age structure of populations. Population size is dynamic, influenced by inputs and outputs.
Population Growth
The size of a population (P_t) at a given time (t) is determined by four fundamental factors:
Where:
P_0is the initial population size.Nis natality (birth rate / number of births).Iis immigration (inward movement of individuals).Mis
India’s Major Environmental Laws: Wildlife, Forest, Air, Water
1. The Wildlife (Protection) Act, 1972
The Wildlife (Protection) Act, 1972 was enacted to protect wild animals, birds, and plants and to ensure ecological and environmental security in India. The Act provides for the creation of national parks, wildlife sanctuaries, conservation reserves, and community reserves. It prohibits hunting, poaching, and illegal trade of wildlife and wildlife products. The Act classifies species into six schedules, with Schedules I and II providing the highest level of
Read MoreEconomic Growth: Geography and Institutional Factors
Key Questions in Economic Development
Proximate and Ultimate Factors in Development
Ultimate factors are deep, underlying causes of development differences—things that shape history over thousands of years. Proximate factors are the immediate mechanisms through which these ultimate factors influence outcomes.
Examples of Ultimate Factors:
- Geography (climate, animals, crops)
- Continental orientation
- Disease environment
Examples of Proximate Factors:
- Technology
- Institutions (property rights, rule of law)
- Education
Great Himalayas, Himalayan Rivers, Indian Climate & Soils
Great Himalayas (Himadri): Structure and Features
The Great Himalayas, also known as the Himadri, form the northernmost and loftiest range of the Himalayan mountain system. They are characterized by their immense height, continuity, and rugged terrain.
1. Structure of the Great Himalayas
The geological structure of the Himadri is a result of the ongoing collision between the Indian and Eurasian tectonic plates.
- Rock Composition: The core of the Great Himalayas is primarily composed of Archaean rocks
Global Urbanization and City Structures
Historical Development of Cities
Cities in Antiquity
- Around 7,000 years ago, the first cities emerged in China, India, and the Middle East.
- Structure centered around a palace, market, and temple, often protected by a defense wall.
The Greek Polis
- The Greek city-state (*polis*) featured two main urban areas:
- The **Acropolis**: The high, fortified area.
- The **Agora**: The public square and marketplace.
- By the 5th century BCE, the grid plan became common.
Roman Cities
- Characterized by a regular, planned layout
Key Concepts in Modern European History
Absolutism
Definition: A monarch possesses absolute power, rules by divine right, and centralizes government.
Key Examples
- France: Louis XIV, who famously stated, “I am the state.” Characterized by a strong army and expensive wars.
- Spain: Philip II led as a Catholic power, though subsequent wars weakened Spain.
- Russia: Peter the Great and Catherine the Great pursued westernization alongside autocracy, maintaining strong control and continuing serfdom.
Note: If the question mentions Parliament, law, or
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