Describe the evolution of science and its impact on society
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Names of some plants and trees that sleep during the day
why our head's weight not feel our body?
The major constituents of Portland cement include 1 Lime, silica and iron oxide 2 Lime, silica and magnesia 3 Silica, alumina and magnesia 4 Lime, silica and alumina
What is the cytology ?
The inert gas which is substituted for nitrogen in the air, used by deep sea divers for breathing, is 1 Helium 2 Argon 3 Krypton 4 Xenon
Where Meson particles are found in ?
Which of the following is called a strategic metal? 1 Silicon 2 Germanium 3 Titanium 4 Uranium
which among the followings is found chlorophyll ?
infra-red rays were first detected by? the intensity level of sound is measured in? the material used for a fuse wire should? radioactivity is a property of? what is the source of electric energy in an artificial satellite? the following is used as a lubricant in heavy machines? supher, bauxite , graphite, phosphorus
The Purest form of water can be obtained from:- I) a deep tube well II) a running stream III) a hot water spring IV) a heavy shower of rain
Which of the following metals react with nitrogen at room temperature to form nitride? 1 Sodium 2 Potassium 3 Magnesium 4 None of these
Why capacitor is not allow dc ?? What the reason?