Chapters
Chapter 6: Natural Resources
P S Verma and V K Agarwal solutions for Class 9 Biology - Science Part 3 Chapter 6 Natural Resources Short Questions Answer ( Carrying 3 Marks) [Pages 336 - 367]
Write down the composition of air.
How does oxygen and carbon dioxide remain nearly constant in the atmosphere?
How does the average temperature of Earth remain fairly steady?
How are winds produced?
Set up an experiment to measure gain and loss of heat by water, sand and air.
Demonstrate the formation of convective currents.
Enumerate the factors that influence movement of air.
How is rain produced?
Set up an experiment to demonstrate the effect of low pressure and particulate nuclei over water vapours.
Describe the major components of air pollution.
Write a brief note on acid rain.
Explain what is smog. Give its effects.
What are the effects of air pollution on human beings?
Explain the direction of air movement during the day and night in coastal areas.
Give role of atmosphere in climatic control.
Briefly explain main layers of the atmosphere.
Explain natural and human-made sources of air pollution.
How are clouds formed?
What is global warming? Give its effects.
Briefly explain depletion of ozone layer and its effects.
Explain phenomenon of acid rain.
Explain rain water harvesting.
What is climate?
Define the Weather.
How are CFCs harmful?
What is weathering? Elucidate in the various types of weathering.
What is soil erosion? Explain means of preventing it.
How do organisms contribute in the formation of soil?
Discuss how water is replenished in sea
Write a note on nitrogen fixation?
How is nitrogen replenished in atmosphere.
Describe the methods of carbon replenishment of atmosphere.
What are the possible dangers of global warming?
How is carbon dioxide concentration of atmosphere rising?
Why is ozone layer called ozone umbrella/shield?
What would be the effects on widening of ozone hole?
Explain water cycle in detail.
Draw diagram of Nitrogen cycle.
Draw diagram of carbon cycle.
Name four types of bacteria involved in nitrogen cycle.
Draw a diagrammatic sketch of oxygen cycle in nature.
Make sketch of hydrological cycle in nature.
Briefly describe three aspects of nutrient cycles.
Describe biological water cycles.
P S Verma and V K Agarwal solutions for Class 9 Biology - Science Part 3 Chapter 6 Natural Resources Long Questions Answer ( Carrying 5 Marks) [Page 367]
Prepare a flow chart of various natural resources.
Why is air called breath of life? Enumerate functions of air or atmosphere.
Describe the causes and effects of air pollution.
Explain ozone layer, its depletion and effects of ozone depletion.
Give an account of various sources and harmful effects of water pollution.
Explain the following :
(i) Eutrophication ;
(ii) Biomagnification
What is soil? How does it form?
Give various sources and harmful effects of soil pollution.
Define soil erosion. Give its causes, effects and preventive measures.
Describe nitrogen cycle.
Mention briefly the role of decomposers of cycling of materials.
Chapter 6: Natural Resources
P S Verma and V K Agarwal solutions for Class 9 Biology - Science Part 3 chapter 6 - Natural Resources
P S Verma and V K Agarwal solutions for Class 9 Biology - Science Part 3 chapter 6 (Natural Resources) 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 CBSE Class 9 Biology - Science Part 3 solutions in a manner that help students grasp basic concepts better and faster.
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Concepts covered in Class 9 Biology - Science Part 3 chapter 6 Natural Resources are Air is a Mixture, Atmosphere and Its Layers, Wind: The Movement of Air, Biogeochemical Cycle, The Carbon Cycle, The Oxygen Cycle, Ozone Layer Depletion, Water Pollution and Its Causes, Biosphere: The Domain of Life, Rain, Air Pollution and Its Causes, Water, Our Lifeline, Where Do We Get Water From?, Natural Resource, Importance of Water, Water Cycle, Nitrogen Cycle, Availability of Water, Mineral Riches in the Soil, Ozone.
Using P S Verma and V K Agarwal Class 9 solutions Natural Resources exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in P S Verma and V K Agarwal Solutions are important questions that can be asked in the final exam. Maximum students of CBSE Class 9 prefer P S Verma and V K Agarwal Textbook Solutions to score more in exam.
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