Class 5 Exam > Class 5 Notes > Science Class 5 > Worksheet: Ecosystem: Interdependence in Nature - 1
Class 5 Science - Ecosystem Interdependence in Nature - CBSE Worksheets - 1
Q1: Multiple Choice Questions (MCQs).
(i) Which of the following is a biotic component of an ecosystem?
(a) Water
(b) Air
(c) Plants
(d) Soil
(ii) What do we call the process by which plants produce their food?
(a) Respiration
(b) Photosynthesis
(c) Decomposition
(d) Transpiration
(iii) Which of the following is an example of a decomposer in an ecosystem?
(a) Deer
(b) Lion
(c) Bacteria
(d) Grass
(iv) What is the main source of energy in an ecosystem?
(a) Wind
(b) Sun
(c) Water
(d) Soil
(v) What do we call the organisms that eat plants for their food?
(a) Carnivores
(b) Herbivores
(c) Omnivores
(d) Decomposers
Q2: Fill in the Blanks.
(i) The __________ refers to all the living organisms and non-living components in a specific area.
(ii) __________ is the process by which green plants make their food using sunlight, carbon dioxide, and water.
(iii) The role of an organism in an ecosystem, including its relationships with other organisms, is called its __________.
(iv) The place where an organism lives and finds its food is called its __________.
(v) Decomposers play a vital role in the ecosystem by __________.
Q3: True or False.
(i) All living organisms depend on each other for their survival in an ecosystem.
(ii) Photosynthesis is the process by which animals produce their food.
(iii) Decomposers help in recycling nutrients by breaking down dead organisms.
(iv) All herbivores are primary consumers in a food chain.
(v) Ecosystems remain constant and do not change over time.
Q4: Short Answer Questions.
(i) What are ecosystems?
(ii) What is a biome?
(iii) What are the two main types of ecosystems?
(iv) What are decomposers, and why are they important?
(v) What happens when one part of an ecosystem is damaged?
You can find Worksheets Solutions here: Worksheet Solutions: Ecosystem: Interdependence in Nature - 1
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FAQs on Class 5 Science - Ecosystem Interdependence in Nature - CBSE Worksheets - 1
| 1. What is an ecosystem and why is it important? |  |
Ans. An ecosystem is a community of living organisms (plants, animals, and microorganisms) interacting with each other and their non-living environment (like water, air, and soil). Ecosystems are important because they provide essential services such as clean air, water, and food, support biodiversity, and help regulate the climate.
| 2. How do plants and animals depend on each other in an ecosystem? | |
Ans. Plants and animals depend on each other in various ways. Plants produce oxygen and food through photosynthesis, which animals need to survive. Animals, in turn, help plants by pollinating flowers and dispersing seeds, allowing new plants to grow. This interdependence maintains balance in the ecosystem.
| 3. What are some examples of interdependence in nature? | |
Ans. Examples of interdependence in nature include bees pollinating flowers and then relying on the nectar for food, predators controlling the population of prey animals, and decomposers breaking down dead matter to enrich the soil, which helps plants grow.
| 4. How does the loss of one species affect an ecosystem? | |
Ans. The loss of one species can disrupt the balance of an ecosystem. For example, if a predator species goes extinct, the population of its prey may increase dramatically, leading to overgrazing and depletion of plant life. This, in turn, affects other species that rely on those plants for food.
| 5. What can we do to protect ecosystems and promote interdependence in nature? | |
Ans. To protect ecosystems, we can reduce pollution, conserve water, support sustainable practices, and protect natural habitats by creating wildlife reserves. Educating ourselves and others about the importance of interdependence in nature can also help foster respect and care for the environment.
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