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most important

Most Important every day science Mcq"s
1=The mass is highly concentrated form of ? Energy
2=The ozone layer is at height of kilometers from the surface of the Earth ? 20 to 30 3=The ozone layer was discovered by ? Charles and Henri
4=The interior structure of the Earth is divided into layers ? 4
5=We live on the Earth’s ? Crust
6=The thickest layer of the Earth is ? Mantle
7=The outermost layer of the Earth is ? Crust
8=he Earth’s internal heat mainly comes from ? Radioactive decay 9=The vernier calipers is used to measure ? Length
10=Atomic clock is used to measure intervals of time ? Very short
11=1 tonne = kg ? 1000
12=Which electromagnetic wave has the longest wavelength? Radio waves 12=All electromagnetic waves have the same ? Speed in vaccum
13=The reflection of sound is called ? Echo
14=The SI unit of thermodynamic temperature is ? Kelvin
15=The shortest distance between crest to crest is called ? wavelength 16=The speed of sound is fastest in ? Solids
17The speed of sound is slowest in ? Gases
18=Which from of rays has the greatest ionizing power? Alpha particles 19=Most penetrating rays are ? gamma rays ( ᵞ- rays )
20=Which from the rays has the greatest speed? Gamma
21=Which electromagnetic wave has the shortest wavelength ? Gamma rays 22=The chemical name of chalk is ? Calcium carbonate
23=The horizontal rows of the periodic table are called ? Periods 24=The vertical coloumns of the periodic table are called ? Groups 25=The strongest part(s) of a magnet is/are ? North and south pole 26=Electromagnetic induction was discovered by ? Faraday
27=The most abundant form of matter in the universe is ? Plasma 28=When gas is ionized, forms ? Plasma
29=Wind is caused by ? Difference in atmospheric pressure 30=Penicillin is obtained from ? fungi