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Test: Ecosystem - 3 - Class 5 MCQ


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20 Questions MCQ Test Science Class 5 - Test: Ecosystem - 3

Test: Ecosystem - 3 for Class 5 2024 is part of Science Class 5 preparation. The Test: Ecosystem - 3 questions and answers have been prepared according to the Class 5 exam syllabus.The Test: Ecosystem - 3 MCQs are made for Class 5 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Ecosystem - 3 below.
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Test: Ecosystem - 3 - Question 1

Which of the following is a characteristic of a desert?

Detailed Solution for Test: Ecosystem - 3 - Question 1

A desert is a very dry and a very hot place as there is very less rainfall there.

Test: Ecosystem - 3 - Question 2

In a jungle there exists many different types of animals. Some of these animals eat plants while some eat meat. All these animals are interdependent on each other. A huge animal - elephant - eats only plants. Which type of consumer is he?

Detailed Solution for Test: Ecosystem - 3 - Question 2

In spite of being a huge animal, an elephant loves eating bananas and leaves, and thus is a herbivore.

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Test: Ecosystem - 3 - Question 3

What happens if a portion of food chain is broken?

Detailed Solution for Test: Ecosystem - 3 - Question 3

When any portion of a food chain is broken, all organisms in the chain are affected.

Test: Ecosystem - 3 - Question 4

Complete the following food chain.

Test: Ecosystem - 3 - Question 5

Read the sentences and choose the correct option.

A: The climatic condition in all the biomes is same.
B: Every country has its own specific 6 biomes.

Detailed Solution for Test: Ecosystem - 3 - Question 5

Both these statements are false. Climatic conditions are not same in all the biomes. No two biomes have the same climatic conditions, besets are very hot whereas tundra region is very cold. Throughout the world/ there exist only 6 biomes that are divided across the countries. It is not true that all countries have their own 6 biomes.

Test: Ecosystem - 3 - Question 6

Read the sentences and choose the correct option.

A: Food webs and food chains are synonyms.
B: Food chain is a part of food web.

Detailed Solution for Test: Ecosystem - 3 - Question 6

Food chains and food webs are not synonyms. Food webs are the cluster of many complex food chains. Food chains are a part of food web.

Test: Ecosystem - 3 - Question 7

Complete the food chain with the correct option. Plant → grasshopper → ____? ____→ Snake.

Detailed Solution for Test: Ecosystem - 3 - Question 7

To complete the food chain, we need to identify the organism that feeds on grasshoppers and is subsequently eaten by snakes.
The correct option is D: Frog. Here is the complete food chain:
- Plant: The food chain starts with plants, which are the primary producers. They use sunlight to produce food through photosynthesis.
- Grasshopper: Grasshoppers are herbivores that feed on plants, specifically on grass.
- Frog: Frogs are carnivores that feed on grasshoppers. They are secondary consumers in the food chain.
- Snake: Snakes are also carnivores and they feed on frogs. They are tertiary consumers in the food chain.
Summary: The complete food chain is as follows: Plant → Grasshopper → Frog → Snake.
Test: Ecosystem - 3 - Question 8

How do living things get energy?

Detailed Solution for Test: Ecosystem - 3 - Question 8

Living things get energy by eating. Different living beings attain energy from different foods. For example a herbivore animal such as a cow gets energy by eating grass whereas a tiger gets energy by eating meat.

Test: Ecosystem - 3 - Question 9

Below are given the parts of a food chain. Which of the arrangements is in the correct order?

Detailed Solution for Test: Ecosystem - 3 - Question 9

 The correct order is Flower → Caterpillar → Bird. Flower is the producer here. Caterpillar sucks the nectar from the flowers and is thus the primary consumer. Bird eats a caterpillar and thus it is a secondary consumer.

Test: Ecosystem - 3 - Question 10

Which of the following describes the process of photosynthesis? 

Detailed Solution for Test: Ecosystem - 3 - Question 10

Plants use light (from sun) + carbon dioxide (from air) + water (from soil) to produce food. The process is called photosynthesis.

Test: Ecosystem - 3 - Question 11

What is a producer's job in an ecosystem?

Detailed Solution for Test: Ecosystem - 3 - Question 11

The producers are the plants and they are called so because they are responsible for producing food and oxygen for animals which they do by the process of photosynthesis.

Test: Ecosystem - 3 - Question 12

The image below describes a food pyramid.
 
Identify X.

Detailed Solution for Test: Ecosystem - 3 - Question 12

"X" is the secondary consumer who eats the herbivore or the primary consumer. These are eaten by the tertiary consumers.

Test: Ecosystem - 3 - Question 13

Lakshmi Prasad, a small farmer grows wheat on his land. He is very scared of snakes. Whenever he encounters a snake he kills it without knowing its adverse effect on the ecosystem. As a nature lover how will you stop him from killing snakes?

Detailed Solution for Test: Ecosystem - 3 - Question 13
Solution to stop Lakshmi Prasad from killing snakes:
1. Educate him about the importance of snakes in the ecosystem:
- Explain to Lakshmi Prasad the role that snakes play in maintaining the balance of the ecosystem.
- Emphasize that snakes are natural predators of rodents and other pests, including rats that can destroy his wheat crops.
- Provide examples and facts to support the importance of snakes in controlling pest populations.
2. Introduce alternative pest control methods:
- Suggest alternative methods to control pests, such as using traps or natural repellents, instead of killing snakes.
- Provide information about organic farming methods that can reduce the dependency on chemical pesticides.
- Highlight the long-term benefits of adopting sustainable pest control practices.
3. Offer assistance and support:
- Offer to help Lakshmi Prasad implement alternative pest control methods on his farm.
- Provide resources and information about organizations or experts who specialize in eco-friendly pest control.
- Encourage him to reach out to local agricultural extension services for guidance and support.
4. Raise awareness in the community:
- Organize workshops or seminars to educate the local community, including farmers like Lakshmi Prasad, about the ecological importance of snakes.
- Involve local schools, environmental organizations, or government agencies to support the initiative.
- Share success stories and case studies of farmers who have successfully adopted snake-friendly practices.
5. Promote snake conservation:
- Advocate for the protection and conservation of snakes by highlighting their ecological significance.
- Raise awareness about the benefits of snakes in maintaining a healthy ecosystem, including biodiversity and natural pest control.
- Encourage the community to report snake sightings to local authorities or wildlife organizations instead of resorting to killing them.
By following these steps, we can effectively stop Lakshmi Prasad from killing snakes and help him understand the importance of snakes in maintaining a balanced ecosystem.
Test: Ecosystem - 3 - Question 14

Directions: An ecosystem includes soil, atmosphere, heat and Sight from the sun, water and living organisms. Soil is a critical part of an ecosystem. It provides important nutrients for the plants in an ecosystem. The atmosphere provides oxygen and carbon dioxide for the plants and animals. In a lake ecosystem, the sun hits the water and helps the algae grow. Algae produces oxygen for animals like fish and provides food for microscopic animals.                                  

Q. Which of the following is not a part of ecosystem?

Detailed Solution for Test: Ecosystem - 3 - Question 14

 None of these are the part of ecosystem.

Test: Ecosystem - 3 - Question 15

Directions: An ecosystem includes soil, atmosphere, heat and Sight from the sun, water and living organisms. Soil is a critical part of an ecosystem. It provides important nutrients for the plants in an ecosystem. The atmosphere provides oxygen and carbon dioxide for the plants and animals. In a lake ecosystem, the sun hits the water and helps the algae grow. Algae produces oxygen for animals like fish and provides food for microscopic animals.

Q. What does algae do in ecosystem?

Detailed Solution for Test: Ecosystem - 3 - Question 15

Algae produces oxygen for water system and provides food for microscopic animal.

Test: Ecosystem - 3 - Question 16

Directions: An ecosystem includes soil, atmosphere, heat and Sight from the sun, water and living organisms. Soil is a critical part of an ecosystem. It provides important nutrients for the plants in an ecosystem. The atmosphere provides oxygen and carbon dioxide for the plants and animals. In a lake ecosystem, the sun hits the water and helps the algae grow. Algae produces oxygen for animals like fish and provides food for microscopic animals.

Q. All the living organisms get oxygen and carbon dioxide from?

Detailed Solution for Test: Ecosystem - 3 - Question 16

All living organisms get oxygen and carbon-dioxide from atmosphere.

Test: Ecosystem - 3 - Question 17

Directions: Fill in the blanks Desert ecosystems are located in regions that receive very less __(47)__ .

Due to extremely high __(48)__, low water availability and intense __(49)__, fauna and flora are scarce and poorly developed.

Detailed Solution for Test: Ecosystem - 3 - Question 17
Answer:
Factors affecting desert ecosystems:

  • Rainfall: Deserts are located in regions that receive very less rainfall, which is a crucial factor in determining the presence of desert ecosystems.

  • Humidity: Due to extremely low humidity levels, desert ecosystems have limited water availability.

  • Air pressure: While air pressure can affect weather patterns, it is not directly related to the presence of desert ecosystems.

  • Water vapors: Although water vapors contribute to the overall humidity levels, they are not the primary determining factor for the presence of desert ecosystems.


Conclusion:

Therefore, the correct answer is option D: rainfall. Desert ecosystems are located in regions that receive very less rainfall, resulting in low water availability and intense aridity.

Test: Ecosystem - 3 - Question 18

Directions: Fill in the blanks Desert ecosystems are located in regions that receive very less __(47)__ .

Due to extremely high __(48)__, low water availability and intense __(49)__, fauna and flora are scarce and poorly developed.

Detailed Solution for Test: Ecosystem - 3 - Question 18

The correct answer to fill in the blank is "temperature".
Explanation:
Desert ecosystems are characterized by specific environmental conditions that contribute to the sparse distribution of fauna and flora. Here's an explanation of each option and why "temperature" is the correct answer:
1. Temperature: Deserts are known for their extreme temperatures, with scorching hot days and freezing cold nights. These temperature variations create a challenging environment for organisms to survive.
2. Pressure: While atmospheric pressure does play a role in weather patterns, it is not a primary factor in determining the characteristics of desert ecosystems.
3. Volume: The volume of what is not specified in the sentence, so it cannot be determined if it is relevant to desert ecosystems.
4. Velocity: Velocity typically refers to the speed of an object in motion. It is not directly related to the characteristics of desert ecosystems.
In summary, the correct answer to fill in the blank is "temperature" because it accurately reflects the extreme thermal conditions present in desert regions.
Test: Ecosystem - 3 - Question 19

Directions: Fill in the blanks Desert ecosystems are located in regions that receive very less __(47)__ .

Due to extremely high __(48)__, low water availability and intense __(49)__, fauna and flora are scarce and poorly developed.

Detailed Solution for Test: Ecosystem - 3 - Question 19
Explanation:

  • The blank 47 is filled with "Sunlight" because desert ecosystems are typically found in regions with very little rainfall, but they receive abundant sunlight.

  • The blank 48 is not mentioned in the passage, so we cannot determine the correct answer.

  • The blank 49 is filled with "wind" because deserts are characterized by strong winds, which can lead to erosion and lack of vegetation.


Therefore, the correct answer is C: Sunlight.
Test: Ecosystem - 3 - Question 20

Roman has a small garden in his house. He noticed one day that some rabbits, goats and birds started eating his plants so he decided to cover the garden with shed and fencing all around, due to this plants started dying one by one. As his friend what will you tell to convince him not to cover the garden?

Detailed Solution for Test: Ecosystem - 3 - Question 20
Reasons to convince Roman not to cover the garden:
1. Fencing is good enough to stop animals from entering the garden:
- Fencing can effectively keep animals out and protect the plants.
- It is a less intrusive method compared to covering the entire garden with a shed.
2. Plants need fresh air and sunlight to produce their food:
- By covering the garden, the plants will be deprived of sunlight, which is essential for photosynthesis.
- Without sunlight, the plants will not be able to produce food and will eventually die.
3. Plants are the producers of the ecosystem:
- Plants play a crucial role in the ecosystem as they are the primary producers.
- They convert sunlight and carbon dioxide into oxygen and food, supporting other organisms in the food chain.
- If the plants die, the entire ecosystem will be disturbed, affecting the animals and birds that rely on the plants for food and shelter.
Conclusion:
- It is best not to cover the garden completely with a shed to allow the plants to thrive.
- Fencing can provide adequate protection while still allowing the plants to receive sunlight and maintain a healthy ecosystem.
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