Man and His Environment Class 10 Notes

Important Complete Notes on Chapter No.16: Class 10 Biology Chapter 7 Notes in 10th Class Biology English Medium written by Professor Mr. Adnan Haider. These computerized notes are very helpful in the preparation of Support and Movement Class 10 Notes for Class 10 Biology Chapter 7 Notes of the 10th class Biology and these are according to the paper patterns of all Punjab boards.

• Important 10th class biology chapter 7 mcqs for all students of Punjab  Textbook Board.
• Very Important Multiple Choice Questions (MCQs) with Answers of the Chapter No. 16: Man and His Environment Class 10 Notes in Biology English Medium Class 10th Punjab Book Boards.
• Define ecosystem.
• Important 10 class biology chapter 7 mcqs for all students of Punjab  Textbook Board.
• Differentiate between population and community.
• What are carnivore’s plants? Give two examples.
• Important class 10 biology chapter 7 mcqs with answers for all students of Punjab  Textbook Board.
• Write the names of abiotic and biotic components of ecosystem.
• If producers are eliminated from ecosystem; what will happen? 
• How storage and expenditure of energy occur in ecosystem?
• Important 10th class biology chapter 7 question answer for all students of Punjab  Textbook Board.
• What is meant by ecological pyramids? Write names of its two types.
• What is difference between intra specific and inter specific interactions?
• What is meant by commensalism give an example?
• Important 10th class biology chapter 7 important questions for all students of Punjab  Textbook Board.
• Write the examples of human impacts on ecosystem balance.
• What is greenhouse effect? Write the name of two important greenhouse gases.
• Important 10th class biology chapter 7 exercise for all students of Punjab  Textbook Board.
• Differentiate between renewable and non-renewable resources.
• Why should we reduce the use of natural resources?
• State the mutual relationship of sucker fish and shark.
• Important biology class 10 chapter 7 short notes for all students of Punjab  Textbook Board.
• From where producers get their energy and in which form they store it? 
• Scientist fears that the sea level is rising up to 0.9cm a year. Rise in sea level has worst effect on coastal countries. Most of the islands of the Maldives are less than 1m above sea level. It is estimated that within 100 year the Maldives might become uninhabitable and the citizens would be forced to evacuate.
• Important class 10th biology chapter 7 important notes for all students of Punjab  Textbook Board.
• What methods are used to control air pollution?
• Describe produces and consumers of an ecosystem. OR Describe the components of ecosystem. OR Write a note on consumers. V.imp
• Important biology class 10 chapter 7 notes for all students of Punjab  Textbook Board.
• What do you know about acid rain. Write its causes and disadvantages. V.imp
• Flow Of Materials And Energy In Ecosystem: In an ecosystem, energy as well as materials travel from one trophic level to the next. Trophic (food) level is the level at which an organism feeds in food chain.
• Important biology chapter 7 class 10 notes for all students of Punjab  Textbook Board.
•  The first trophic level is made of producers; the second of primary consumers and so on.
• Flow of Energy: The flow of energy in different trophic levels of ecosystem is unidirectional.
• Important class 10 biology chapter 7 notes pdf for all students of Punjab  Textbook Board.
• The Sun is the primary source of energy for all ecosystems. Producers get solar energy and transform it into chemical energy by the process of photosynthesis. 
• Important 10th class biology chapter 7 short questions pdf for all students of Punjab  Textbook Board.
• They store this energy in their tissues and also transform it into mechanical and heat energy during their metabolic activities. The energy in producers’ tissues flows to herbivores when producers are eaten.
• Important 10th class biology chapter 7 short questions pdf free download for all students of Punjab  Textbook Board.
• Herbivores transform it into mechanical and heat energy during their metabolic activities and store the rest in their tissues. Carnivores eat herbivores and get energy. 
• Important class 10th biology chapter 7 short question answer for all students of Punjab  Textbook Board.
• They also use it for their body activities and store the rest in their tissues. After the death of producers and consumers, the energy stored in their tissues is used by decomposers.
• Important class 10 biology chapter 7 short notes pdf for all students of Punjab  Textbook Board.
• The storage and expenditure of energy in an ecosystem is in accordance with the basic law of thermodynamics i.e. ‘energy can neither be created nor destroyed but can be transformed from one form into another’.
• Important class 10 biology chapter 7 short questions and answers for all students of Punjab  Textbook Board.
• In an ecosystem there is,
• 1. Constant flow or transfer of energy from the Sun through producers to consumers and decomposers.
• Important class 10 biology chapter 7 short questions and answers pdf for all students of Punjab  Textbook Board.
• 2. A significant decrease in useful energy during transfer of energy at each trophic level.
• Flow of Materials: The materials flow from one trophic level to the next by means of food chains and food webs.
• Important class 10 biology chapter 7 important questions with answers pdf for all students of Punjab  Textbook Board.
• A food chain is a series of organisms within an ecosystem, in which each organism feeds on the one before it and is fed by the one after it. For example, following is a food chain in an ecosystem: Grass-Grassopper-Sparrow-Hawk.
• Important class 10 biology chapter 7 important questions pdf for all students of Punjab  Textbook Board.
• The base of food chain is always formed by a plant (producer). It is eaten by a primary consumer, which is preyed upon by a secondary consumer. The secondary consumer may be eaten by a tertiary consumer. A food chain, can therefore, be represented as, Producer -Primary Consumer-Secondary Consumer-Tertiary Consumer.
• Important class 10 biology chapter 7 important short questions for all students of Punjab  Textbook Board.