Every question from this NCERT chapter, with a detailed explanation.
Consider the following statements about Endangered Species: 1. They include species which are in danger of extinction. 2. The World Bank publishes the Red List containing information about them. 3. The Red Panda is considered an invasive species and is not endangered. Which of the statements given above is/are correct?
Which of the following statements regarding the Convention on Biodiversity is correct?
With reference to the geographical distribution of biodiversity, consider the following statements: 1. The weathering mantle serves as the fundamental basis for the diversity of vegetation. 2. Biodiversity is consistently richer in the polar regions due to lower human interference. 3. The input of solar energy has no role in determining the diversity of vegetation. Which of the statements given above is/are correct?
Consider the following statements regarding Genetic Diversity: 1. It refers to the variation of genes within a species. 2. It has no influence on the physical characteristics of individuals within a species. 3. High genetic diversity is essential for the healthy breeding of a population. Which of the statements given above is/are correct?
With reference to Species Diversity, consider the following statements: 1. It refers solely to the genetic variation within a single species. 2. It can be measured through richness, abundance, and types. 3. Areas with high species diversity are often termed as 'hotspots of diversity'. Which of the statements given above is/are correct?
Consider the following statements regarding the Ecological Role of Biodiversity: 1. Higher diversity in an ecosystem decreases its ability to survive adversities. 2. Every organism contributes to the sustenance of other organisms. 3. Ecosystems with high diversity are generally less stable than those with low diversity. Which of the statements given above is/are correct?
Which of the following functions are performed by species in an ecosystem? 1. Capture and store energy. 2. Decompose organic materials. 3. Fix atmospheric gases. 4. Regulate the climate. Select the correct answer using the code given below:
With reference to the Tropical Regions, consider the following statements: 1. They occupy about one-fourth of the world's total area. 2. They contain less than 10 % of the world's human population. 3. Tropical rain forests contain 50 % of the species on the earth. Which of the statements given above is/are correct?
Consider the following pollutants that destroy weak and sensitive species: 1. Inert gases like Argon. 2. Toxic heavy metals. 3. Nitrogen oxides. Which of the above are explicitly mentioned?
Which of the following is NOT a category of 'Threatened Species' under the IUCN Red List classification?
The 'Red List' of threatened species is published by which organization?
Biodiversity Hotspots are primarily identified based on which of the following criteria?
In which of the following hotspots are about 85 % of the plants and animals found nowhere else in the world?
The biodiversity of the islands of Hawaii is primarily threatened by:
The Convention of Biodiversity was signed at the Earth Summit held in:
In India, the Wild Life (Protection) Act was passed in which year?
Consider the following statements about Genes: 1. Genes are the units of heredity that carry genetic information. 2. They are the basic building blocks of various life forms. 3. Human beings are genetically classified under the genus 'Pan'. Which of the statements given above is/are correct?
Consider the following pairs regarding biodiversity conservation: S.No. | Term | Description 1. | Hotspots | Areas with high species richness and endemism. 2. | Mega Diversity Centres | Mega Diversity Centres are primarily located in the polar regions. 3. | Red List | A catalogue of threatened species published by the IUCN. Which of the pairs given above is/are correctly matched?
Species which are not the natural inhabitants of the local habitat but are introduced into the system are called:
With reference to the Convention on Biodiversity (1992), consider the following statements: 1. The Government of India refused to sign the convention. 2. It took place in Rio de Janeiro, Brazil. 3. It is a legally binding treaty to conserve biodiversity, sustainable use, and fair sharing of benefits. Which of the statements given above is/are correct?
Consider the following statements regarding Hotspots: 1. People living in hotspots depend on species-rich ecosystems for food, firewood and timber. 2. Hotspots are areas where biodiversity is least threatened. 3. The hotspots concept was proposed by Norman Myers/Conservation International. Which of the statements given above is/are correct?
Which of the following is an example of a Mega Diversity Centre in South America?
Consider the following statements regarding the IUCN: 1. It stands for International Union for Conservation of Nature and Natural Resources. 2. It has identified biodiversity hotspots. 3. It publishes the Red List of threatened species. Which of the statements given above is/are correct?
Consider the following statements regarding the Economic Role of Biodiversity: 1. Biodiversity has no role in the supply of medicinal resources. 2. It is the origin of new conflicts dealing with rules of division of natural resources. 3. Agro-biodiversity is an integral part of biodiversity. Which of the statements given above is/are correct?