💡🌌 Dive into the Electrifying World of Atoms: Class 9 CBSE Atomic Structure Notes 📝 Searching for the Perfect CBSE Class 9 Atomic Structure Notes? Look No Further! 📚 Welcome to an Atomic Adventure: Class 9 CBSE Notes for Atomic Structure 🚀🔍 🌟 Mastering the Basics: CBSE Class 9 Atomic Structure Notes to Shine in …
🔬💥 Unraveling the Mysteries of Atomic Structure: Your Ultimate Class 9 CBSE Guide! 🚀📚 Read More »
Question 1. What do we get from cereals, pulses, fruits and vegetables?Solution :(i) Cereals provide us with carbohydrates. Also, they are a rich source of energy.(ii) Pulses give us proteins.(iii) Fruits and vegetables are a rich source of vitamins and minerals. A small amount of proteins, carbohydrates, and fats are also present in them. Question …
CLASS 9 SCIENCE CHAPTER-15 IMPROVEMENT IN FOOD RESOURCES Read More »
Question 1. How is our atmosphere different from the atmospheres on Venus and Mars?Solution : Earth’s atmosphere is different from those of Venus and Mars. This difference lies essentially in their compositions. Earth’s atmosphere is a mixture of nitrogen (79%), oxygen (20%), and a small fraction of carbon dioxide, water vapours and other gases. This makes …
Question 1. State any two conditions essential for good health.Solution :The Two conditions essential for good health are :(i) An individual must have better health facilities and more professionals to deal with health problems.(ii) All basic necessary conditions to prevent diseases must be present. For example, proper garbage collection and disposal, clearing of drains, supply …
Question 1. How does the sound produced by a vibrating object in a medium reach your ear?Solution : When an object vibrates, it forces the neighbouring particles of the medium to vibrate. These vibrating particles then force the particles adjacent to them to vibrate. In this way, vibrations produced by an object are transferred from one …
Question 1. A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of the force. Let us take it that the force acts on the object through the displacement. What is the work done in this case?Solution :Since Work (W)= Force (F) x displacement (d) = 7 …
Question 1. State the universal law of gravitation.Solution : According to Newton’s universal law of gravitation :Every mass in this universe attracts every other mass with a force which is directly proportional to the product of two masses and inversely proportional to the square of the distance between them. Question 2. Write the formula to find …
Question 1. Which of the following has more inertia :(a) a rubber ball and a stone of the same size?(b) a bicycle and a train?(c) a five rupees coin and a one-rupee coin?Solution :(a) a stone of the same size will have more inertia than a rubber ball.(b) A train will have more inertia than …
CLASS 9 SCIENCE CHAPTER-9 FORCES AND LAWS OF MOTION Read More »
Question 1. An object has moved through a distance. Can it have zero displacement? If yes, support your answer with an example.Solution : Yes, if an object has moved through a distance it can have zero displacement because displacement of an object is the actual change in its position when it moves from one position to …
Question 1. Why do we classify organisms?Solution : A large number of organisms exist on this earth. We cannot study such enormous biodiversity one by one i.e. studying variety of life forms individually is an impossible task.Hence, we make groups or categories of organisms depending upon their similarities and dissimilarities with other organisms. This allows an …
CLASS 9 SCIENCE CHAPTER-7 DIVERSITY IN LIVING ORGANISMS Read More »