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Balbharati solutions for Maharashtra state board Class 9 Science and Technology chapter 7 - Energy Flow in an Ecosystem [Latest edition]

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Maharashtra state board Class 9 Science and Technology - Shaalaa.com

Chapter 7: Energy Flow in an Ecosystem

Exercise

Balbharati solutions for Maharashtra state board Class 9 Science and Technology Chapter 7 Energy Flow in an Ecosystem Exercise [Page 87]

Exercise | Q 1 | Page 87

Complete the following table (Carefully study the carbon, oxygen and nitrogen cycles). 

Bio-geo-chemical cycles  Biotic processes  Abiotic processes 
1. Carbon cycle     
2. Oxygen cycle     
3. Nitrogen cycle    
Exercise | Q 2.1 | Page 87

Correct and rewrite the following statement and justify your correction. 

Carnivores occupy the second trophic level in the food chain. 

Exercise | Q 2.2 | Page 87

Correct and rewrite the following statement and justify your correction. 

The flow of nutrients in an ecosystem is considered to be a ‘one way’ transport. 

Exercise | Q 2.3 | Page 87

Correct and rewrite the following statement and justify your correction. 

Plants in an ecosystem are called primary consumers. 

Exercise | Q 3.1 | Page 87

Give reason .

Energy flow through an ecosystem is ‘one way’. 

Exercise | Q 3.2 | Page 87

Give reason.

Equilibrium is necessary in the various bio-geo-chemical cycles.

Exercise | Q 3.3 | Page 87

Give reason.

Flow of nutrients through an ecosystem is cyclic. 

Exercise | Q 4.1 | Page 87

Explain the following cycle in your own words with suitable diagram. 

Carbon cycle. 

Exercise | Q 4.2 | Page 87

Explain the following cycle in your own words with suitable diagram. 

Nitrogen cycle. 

Exercise | Q 4.3 | Page 87

Explain the following cycle in your own words with suitable diagram. 

Oxygen cycle.

Exercise | Q 5 | Page 87

What would you do to help maintain the equilibrium in the various bio-geo-chemical cycles? Explain in brief.

Exercise | Q 6 | Page 87

Explain in detail the inter-relationship between the food chain and food web.

Exercise | Q 7 | Page 87

State the different types of bio-geochemical cycles and explain  the importance of those cycles. 

Exercise | Q 8.1 | Page 87

Explain the following with suitable examples. 

What type of changes occur in the amount of energy during its transfer from plants to apex consumers? 

Exercise | Q 8.2 | Page 87

Explain the following with suitable examples.

What are the differences between flow of matter and of energy in an ecosystem? Why? 

Chapter 7: Energy Flow in an Ecosystem

Exercise
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Maharashtra state board Class 9 Science and Technology - Shaalaa.com

Balbharati solutions for Maharashtra state board Class 9 Science and Technology chapter 7 - Energy Flow in an Ecosystem

Balbharati solutions for Maharashtra state board Class 9 Science and Technology chapter 7 (Energy Flow in an Ecosystem) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Maharashtra State Board Maharashtra state board Class 9 Science and Technology solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Maharashtra state board Class 9 Science and Technology chapter 7 Energy Flow in an Ecosystem are Concept of Energy Flow in an Ecosystem, Food Chain and Food Web, The Energy Pyramid, Bio-geo-chemical Cycle, The Carbon Cycle, The Oxygen Cycle.

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