NCERT 9th Class (CBSE) Science: Natural Resources Quiz 22 Multiple Choice Questions related to NCERT 9th Class (CBSE) Science: Natural Resources Quiz Combustion, respiration and in the formation of oxides of nitrogen. Symptoms of disease are the signs of a disease which indicates the presence of a particular disease. Rainfall …
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NCERT 9th Class (CBSE) Science: Sound Quiz 23 Multiple Choice Questions related to NCERT 9th Class (CBSE) Science: Sound Quiz The way our brain interprets the frequency of an emitted sound is called the pitch. The quality or timber of sound helps us to distinguish one sound from another having …
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NCERT 9th Class (CBSE) Science: Energy and Work Quiz 19 Multiple Choice Questions related to NCERT 9th Class (CBSE) Science: Energy and Work Quiz It states that energy can neither be created nor destroyed. It can only change its form. The winning team does work. The work is equal to …
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NCERT 9th Class (CBSE) Science: Atoms and Molecules Quiz 20 Multiple Choice Questions related to NCERT 9th Class (CBSE) Science: Atoms and Molecules Quiz: In a chemical substance the elements are always present in definite proportions by mass. E.g., In water, the ratio of the mass of hydrogen to the …
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Class Notes NCERT Solutions for CBSE Students