Class 11 Geography Important Chapter 24 Biodiversity and Its Conservation

Class 11 Geography Important Chapter 24 Biodiversity and Its Conservation Solutions English Medium As Per AHSEC New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters ASSEB Class 11 Geography Important Solutions and select need one. AHSEC Class 11 Elective Geography Additional Notes English Medium Download PDF. HS 1st Year Finance Important Solutions in English.

Class 11 Geography Important Chapter 24 Biodiversity and Its Conservation

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. ASSEB Class 11 Elective Geography Additional Question Answer are part of All Subject Solutions. Here we have given HS 1st Year Elective Geography Important Notes in English for All Chapters, You can practice these here.

Biodiversity and Its Conservation

Chapter: 24

SIXTH UNIT : BIOSPHERE

IMPORTANT QUESTION AND ANSWER

Answer The Following Questions:

1. What is species diversity?

Ans: The total number of species found within a particular geographical region is called the species diversity of that area.

2. How many species of living organisms are estimated to exist on Earth today?

Ans: It is estimated that there are about 45 million species of living organisms on Earth today.

3. According to available data, how many species become extinct each year?

Ans: On average, about 10,000 species of living organisms become extinct every year.

4. What is a biodiversity hotspot?

Ans: Regions located mainly in tropical zones that contain an exceptionally high level of species diversity are known as biodiversity hotspots.

5. In which year was the Wildlife Protection Act enacted in India?

Ans: The Wildlife Protection Act was enacted in 1972 by the Government of India.

6. What is a National Park?

Ans: A National Park is a legally protected natural area where plants, animals, and microorganisms are conserved in their natural habitat.

7. How many species approximately become extinct every year?

Ans: On average, about 10,000 species become extinct every year.

8. How long would it take for the Earth to become completely lifeless?

Ans: It is estimated that it would take around 4,000 years for Earth to become completely lifeless.

9. On what does human life depend most?

Ans: Human life depends largely on biodiversity.

10. What is conserved in Kaziranga National Park?

Ans: The one-horned rhinoceros is conserved in Kaziranga National Park.

Long Question & Answer:

1. Explain the ecological importance of biodiversity.

Ans: Every species in an ecosystem contributes to its stability and productivity. No species exists without a role; each plays a part in maintaining ecological balance. Every organism—from microorganisms to humans—contributes to processes like photosynthesis, energy transfer, nutrient cycling, decomposition, and gas balance.

A diverse ecosystem allows multiple species to perform different roles, ensuring that ecological functions continue even if one species declines. It helps maintain soil fertility, atmospheric stability, and energy flow. Moreover, greater biodiversity enhances adaptation and evolution, enabling species to survive environmental changes. Therefore, biodiversity ensures ecological resilience and sustainability.

2. What is biodiversity? Explain its main types with examples.

Ans: Biodiversity refers to the variety and variability among all living organisms within a specific geographical area — including plants, animals, and microorganisms. It represents the richness and complexity of life on Earth.

The main types of biodiversity are:

(i) Genetic Diversity: It refers to the variation in genetic composition among individuals of the same species. Genes carry hereditary traits, and variations in genes lead to diversity among individuals. For example, all mango trees produce mangoes, but different varieties exist due to genetic differences.

(ii) Species Diversity: It denotes the total number of different species found within a region. For instance, Northeast India is rich in citrus fruit species like lemon, orange, grapefruit, etc., showing high species diversity.

(iii) Ecological Diversity: It refers to the diversity of ecosystems or habitats within a particular region. For example, Kaziranga National Park has wetlands, grasslands, forests, and highlands — each supporting different forms of life. The greater the ecological diversity, the richer the biodiversity of that ecosystem.