our environment class 10 quiz

Class 10 Science Our Environment Quiz Part 1

This quiz covers key concepts from “Our Environment,” including ecosystems, food chains, pollution, waste management, and sustainable practices. Test your knowledge on how human actions impact the environment and ways to protect it!

Welcome to your Class 10 Our Environment part 1

Which of the following best defines an ecosystem?

Please select your answer A community of animals living together A biological environment where organisms interact with each other and their physical surroundings A large region dominated solely by plant species

What distinguishes a natural ecosystem from an artificial one?

Please select your answer A natural ecosystem has high biodiversity and minimal human intervention, while an artificial ecosystem is created and managed by humans. A natural ecosystem has only abiotic components, whereas an artificial one has biotic components Natural ecosystems exist only in oceans, while artificial ones are on land.

In an ecosystem, what is the primary function of producers?

Please select your answer To consume other organisms for energy To recycle nutrients by breaking down organic matter To produce their own food, supplying energy to other organisms

Which is an example of a primary consumer in an ecosystem?

Please select your answer A wolf A rabbit

How do abiotic components influence an ecosystem?

Please select your answer By providing the physical and chemical conditions necessary for life By competing with biotic components for resources By directly participating in the food chain

What role do decomposers play in an ecosystem?

Please select your answer They act as top carnivores in the food web. They recycle nutrients by breaking down dead organic matter. They provide energy to primary consumers.

Which of the following describes a biotic component of an ecosystem?

Please select your answer Sunlight Soil Bacteria

Why is biodiversity often lower in artificial ecosystems compared to natural ecosystems?

Please select your answer Artificial ecosystems are entirely self-sustaining. Human management may limit the diversity of species. Artificial ecosystems have no biotic components.

In an energy pyramid, which level would contain the most biomass in a healthy ecosystem?

Please select your answer Secondary consumers Tertiary consumers Producers

In which type of ecosystem would you most likely find decomposers like fungi and bacteria actively recycling nutrients?

Please select your answer Both natural and artificial ecosystems Only in marine ecosystems Artificial ecosystems only

Which abiotic component primarily provides energy for photosynthesis in producers?

Please select your answer Water Sunlight Temperature

Why is pH level considered an important abiotic factor in ecosystems?

Please select your answer It affects the availability of nutrients in soil and water for organisms. It determines the oxygen levels in the air. It regulates the humidity in tropical areas.

In a grassland food chain, which organism represents the primary consumer?

Please select your answer Grass Deer Lion

Which abiotic factor most directly affects the metabolic rates of organisms?

Please select your answer Temperature Humidity Nutrients

In the food chain “Grass → Insect → Frog → Eagle,” what role does the frog play?

Please select your answer Producer carnivore omnivore

How does soil composition impact plant growth in an ecosystem?

Please select your answer It provides a medium and essential nutrients required for plant growth. It solely regulates the temperature for plant roots. It supplies oxygen directly to the plant’s leaves.

What would likely happen to an ecosystem if the humidity levels decreased significantly?

Please select your answer Increased rate of photosynthesis in plants Reduced water availability, affecting plant growth and animal behavior Higher temperature, resulting in more energy flow through the food chain

In a simple food chain, if the primary consumer population decreases significantly, what will most likely happen to the producers?

Please select your answer Their population will increase due to reduced consumption. They will become extinct. They will consume other producers to compensate.

In an aquatic ecosystem, which abiotic factor is most crucial for supporting photosynthetic organisms?

Please select your answer Air Soil composition on the riverbed Water clarity allowing sunlight penetration

In a food chain where grass is eaten by insects, which are in turn eaten by frogs, what is the role of insects?

Primary consumer

Secondary consumer

Producer

None

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