MCQ - CBSE Class 9 Science There is mass mortality of fishes in a pond. What may be the reasons ? 10/05/2023 Ajit kumar 66 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Why does water need conservation even though large oceans surround the land masses ? 10/05/2023 Ajit kumar 78 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Why do not lichens occur in Delhi whereas they commonly grow in Manali or Darjeeling? 10/05/2023 Ajit kumar 79 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Why does Mathura refinery pose problems to the Taj Mahal? 10/05/2023 Ajit kumar 88 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Why does moon have very cold and very hot temperature variations, e.g., from -190 °C to 110 °C even though it is at the same distance from the sun as the earth is? 10/05/2023 Ajit kumar 81 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Why does the percentage of gases like oxygen, nitrogen and carbon dioxide remain almost the same in the atmosphere? 10/05/2023 Ajit kumar 92 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Soil formation is done by both abiotic and biotic factors. List the names of these factors by classifying them as abiotic and biotic. 10/05/2023 Ajit kumar 88 Views 0 Comments Read more
MCQ - CBSE Class 9 Science Following are a few organisms : 10/05/2023 Ajit kumar 147 Views 0 Comments Read more
MCQ - CBSE Class 9 Science In coastal area, wind current moves from the sea towards the land during day; but during night it moves from land to the sea. Discuss the reason. 10/05/2023 Ajit kumar 101 Views 0 Comments Read more
MCQ - CBSE Class 9 Science How can we prevent the loss of topsoil ? 10/05/2023 Ajit kumar 83 Views 0 Comments Read more