Question 1 What are macro and micro nutrients in plants? Give examples? Question 2 Name the three most important nutrients needed for the growth of plant? Question 3 From do the plants get carbon, oxygen and hydrogen? Question 4 How do plants get nutrients? Question 5 Differentiate between manures and fertilizers? Question 6 What are the advantages and … [Read more...] about Nutrient management, Manures and Fertilisers
Class 9
Crop Production
Question 1 What do we get from cereals, pulses, fruits and oil seed crops? Question 2 On what factors does successful crop production depends? Question 3 Why is it necessary to increase production of both, plants and animals? Question 4 Name 2 crop season in northern India? Give example of each? Food is required for growth, development and body repair. It also … [Read more...] about Crop Production
Water Cycle
Question 1 What are biochemical cycles? Question 2 Give diagrammatic representation of water cycle? Question 3 What is water cycle? Question 4 Explain water cycle? Biochemical Cycles The abiotic and biotic component of biosphere constantly interact with each other to form a dynamic but stable system. These interactions consist of a transfer of matter and energy … [Read more...] about Water Cycle
Atmosphere
Question 1 Define the term environment? Question 2 What are biotic components? Question 3 What are abiotic components? Question 4 Define the term atmosphere? Question 5 Name the 5 layers of atmosphere? Question 6 What is biosphere? Question 7 What is hydrosphere? Question 8 What is lithosphere? Natural Resources Life on earth is due to ambient … [Read more...] about Atmosphere
Reverberation
Question 1 Define the term reverberation? Question 2 What is a megaphone. Name the principle on which a megaphone work? Question 3 What is a stethoscope. Name the principle on which a stethoscope work? Question 4 What is a soundboard. Name the principle on which a soundboard work? Question 5 Why are the ceiling of concert halls made curved? Question 6 How can we … [Read more...] about Reverberation