Class IX
Subject Science
|Write whatever two methods of preventing soil erosion. | |
|Which phylum of kingdom animalia has spiny torso? Give one example of it. | |
|Write two points of rest between amphibians and reptiles. | |
|Name any two abiotic factors that make soil. | |
|When an target area moves on a circular path, what is the work done? | |
|What is band? Give formula for time of echo. | |
|Establish a coitus between wavelength, frequency and speed of sound in a medium.
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|Differentiate between longitudinal and transverse waves? | |
|Which would have greater effect on the kinetic energy of an object, doubling the sight or doubling the velocity? | |
|Where are electrons found in the atom? | |
|Calculate the formula unit mass of CaCO3 (atomic pile:Ca=40u,C =12u ,O =16u). | |...If you want to get a full essay, rig it on our website: Ordercustompaper.com
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