Very Short Answer Questions: How Nature Works in Harmony

Q1: Name some National Parks and sanctuaries.

Ans: Bharatpur Sanctuary, Lockchao Wildlife Sanctuary, Kaziranga National Park and Satpura National Park. These areas are set aside to protect special habitats and species; for example, Bharatpur is well known for many migratory birds and Kaziranga for the one-horned rhinoceros.

Q2: What is the major threat to the survival of organisms?

Ans: Habitat destruction, particularly through activities like deforestation, is a major threat to the survival of organisms. Other important threats include pollution, over-exploitation of resources and changes in climate, which together reduce the space and resources species need to survive.

Q3: What do you mean by deforestation?

Ans: Deforestation refers to clearing or cutting down forests for other land uses such as farming, urban development or timber extraction. It reduces forest cover, destroys homes for many species, increases soil erosion and can change local climate conditions.

Q4: Name some products which we get from forests.

Ans: Fruits, timber, medicines, rubber, and honey are some products obtained from forests. Forests also provide resins, fibres, fuelwood and many plants used in traditional medicines and industries.

Q5: What is sanctuary?

Ans: A sanctuary is an area designated for the protection of animals and their habitats, where human disturbances are minimised and some activities are restricted. It provides safe breeding and feeding grounds for wildlife while allowing limited regulated human use in many cases.

Q6: What are National Parks?

Ans: National Parks are areas set aside for the conservation of wildlife and natural resources, allowing animals to thrive in their natural habitats. Protection in national parks is usually stricter than in many sanctuaries, with fewer human activities allowed inside their boundaries.

Q7: What are migratory birds? Give Examples 

Ans: Migratory birds are those that travel long distances between their breeding and non-breeding habitats. Examples: Surkhab, Bar-headed Goose, Arctic tern, Siberian cranes, etc.

Q8. What is a habitat?
A habitat is the place where an organism lives and finds the conditions it needs to survive. It provides food, water, shelter and suitable climatic conditions needed for growth and reproduction.

Q9. What are biotic components of a habitat?
Biotic components are the living things in a habitat, such as plants, animals and microbes. These include producers, consumers and decomposers that interact with one another.

Q10. What are abiotic components of a habitat?
Abiotic components are the non-living things in a habitat, such as air, water, soil, sunlight and temperature. These factors determine the living conditions and limit which organisms can survive there.

Q11. Why do different habitats have different organisms?
Different habitats have different conditions, so organisms adapt to survive in the specific conditions of their habitat. Variations in climate, food, water and shelter mean different plants and animals are suited to different places.

Q12. What is a population in ecology?
A population is a group of organisms of the same species living in a specific area at a given time. Members of a population can interbreed and compete for the same resources.

Q13. What is a community in ecology?
A community is all the different populations of living organisms that live and interact in the same habitat. These interactions include feeding relationships, competition and cooperation among species.

Q14. Why is diversity important in a habitat?
Diversity reduces competition and helps maintain balance by giving different organisms different roles. Greater diversity also makes ecosystems more stable and better able to recover from changes or disturbances.

Q15. What is pollination?
Pollination is the transfer of pollen from the stamen to the carpel of the same or another flower to help form fruits and seeds. This transfer may be carried out by insects, birds, wind or water.

Q16. What is an ecosystem?
An ecosystem is a system made of living and non-living components in an area and all the interactions among them. It includes flows of energy and cycles of nutrients that keep the system functioning.

Q17. Who are producers in an ecosystem?
Producers are organisms, mainly plants, that make their own food by photosynthesis. Algae and green plants form the base of most food chains by converting sunlight into energy.

Q18. Who are consumers in an ecosystem?
Consumers are organisms that obtain energy by eating plants or other animals. They include herbivores (plant eaters), carnivores (meat eaters) and omnivores (eat both plants and animals).

Q19. What are decomposers?
Decomposers are organisms like fungi, bacteria and some worms that break down dead matter and recycle nutrients into the soil. They help keep the environment clean and return important minerals for plants to use.

Q20. What is a food chain?
A food chain is a simple sequence that shows who eats whom in an ecosystem. For example: grass → grasshopper → frog → snake, where energy moves from producers to various consumers.

Q21. What is a food web?
A food web is a network of interconnected food chains showing complex feeding relationships. It demonstrates that most organisms eat and are eaten by several other species, which adds stability to the ecosystem.

Food Web

Q22. What is a trophic level?
A trophic level is the position an organism occupies in a food chain, such as producer, herbivore, or carnivore. Energy flows from one trophic level to the next, with some energy lost as heat at each step.

Q23. Why is the ecological pyramid wider at the base?
The pyramid is wider at the base because producers are most numerous and contain the most available energy. Energy decreases at higher levels, so there are fewer organisms at each successive trophic level.

Q24. How do organisms interact with abiotic components?
Organisms use abiotic components like sunlight, water, air and soil for processes such as photosynthesis, respiration and growth. For example, plants use sunlight and water to make food, while animals need water and oxygen to survive.

Q25. What is mutualism?
Mutualism is a relationship where both organisms benefit, like bees getting nectar while helping flowers pollinate. Both partners gain something essential for their survival.

Q26. What is commensalism?
Commensalism is a relationship where one organism benefits and the other is unaffected. An example is epiphytic orchids that live on tree branches to get light; the tree is neither helped nor harmed.

Q27. What is parasitism?
Parasitism is a relationship where one organism benefits while the other is harmed. Examples include ticks or leeches that feed on the blood of larger animals and can cause illness or weakness in the host.

Q28. How can removing fish affect pollination around ponds?
Removing fish can allow more dragonfly larvae to survive; this leads to more adult dragonflies, which may eat insects including pollinators. As a result, fewer pollinators around ponds can reduce pollination of nearby plants.

Q29. What is one effect of deforestation on animals like elephants?
Deforestation can force elephants to move into farms and villages in search of food and shelter. This often leads to crop damage and conflicts between people and elephants.

Q30. Why are decomposers important for nature's balance?
Decomposers recycle nutrients and prevent the buildup of dead materials and waste. By breaking down dead plants and animals, they return minerals to the soil, supporting plant growth and keeping ecosystems healthy.

Q31. What are protected areas and why are they important?
Protected areas are regions set aside to conserve wildlife and habitats, helping save biodiversity for the future. They include national parks, wildlife sanctuaries and biosphere reserves, and they provide space for species to survive, for scientific study and for regulated eco-tourism.

Q32. Why are mangroves like the Sundarbans valuable?
Mangroves like the Sundarbans protect coasts from storms and waves, reduce erosion, store carbon and support unique wildlife. They also act as nurseries for many fish and crabs and provide important services to people living nearby.