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Chapters
2: Work and Energy
3: Current Electricity
4: Measurement of Matter
5: Acids, Bases and Salts
6: Classification of Plants
▶ 7: Energy Flow in an Ecosystem
8: Useful and Harmful Microbes
9: Environmental Management
10: Information Communication Technology (ICT)
11: Reflection of Light
12: Study of Sound
13: Carbon: An important element
14: Substances in Common Use
15: Life Processes in Living Organisms
16: Heredity and Variation
17: Introduction to Biotechnology
18: Observing Space: Telescopes
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Solutions for Chapter 7: Energy Flow in an Ecosystem
Below listed, you can find solutions for Chapter 7 of Maharashtra State Board Balbharati for Science and Technology [English] 9 Standard Maharashtra State Board.
Balbharati solutions for Science and Technology [English] 9 Standard Maharashtra State Board 7 Energy Flow in an Ecosystem Exercise [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 |
Correct and rewrite the following statement and justify your correction.
Carnivores occupy the second trophic level in the food chain.
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.
Correct and rewrite the following statement and justify your correction.
Plants in an ecosystem are called primary consumers.
Give reason.
Energy flow through an ecosystem is ‘one way’.
Give reason.
Equilibrium is necessary in the various bio-geo-chemical cycles.
Give reason.
The flow of nutrients through an ecosystem is cyclic.
Explain the following cycle in your own words with a suitable diagram.
Carbon cycle.
Explain the following cycle in your own words with a suitable diagram.
Nitrogen cycle.
Explain the following cycle in your own words with a suitable diagram.
Oxygen cycle.
What would you do to help maintain the equilibrium in the various bio-geo-chemical cycles? Explain in brief.
Explain in detail the inter-relationship between the food chain and the food web.
State the different types of bio-geochemical cycles and explain the importance of those cycles.
Explain the following with suitable examples.
What type of changes occur in the amount of energy during its transfer from plants to apex consumers?
Explain the following with suitable examples.
What are the differences between the flow of matter and of energy in an ecosystem? Why?
Solutions for 7: Energy Flow in an Ecosystem
Balbharati solutions for Science and Technology [English] 9 Standard Maharashtra State Board chapter 7 - Energy Flow in an Ecosystem
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Concepts covered in Science and Technology [English] 9 Standard Maharashtra State Board chapter 7 Energy Flow in an Ecosystem are Concept of Energy Flow in an Ecosystem, Food Web, Energy Pyramid, The Oxygen Cycle, Biogeochemical Cycle, The Carbon Cycle, Food Chain, Nitrogen Cycle.
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