Related Questions

The most abundant element in the earth 's crust is oxygen . The second most abundant element is the earth's crust is -
A Hydrogen
B Silicon
C Nitrogen
D Brass
The most abundant element in the earth's atmosphere is
A Argon
B Nitrogen
C Oxygen
D Krypton
The most abundant element in the Earth's crust is -
A Oxygen
B Hydrogen
C Carbon dioxide
D Silicon
The most abundant rare gas in the atmosphere is
A He
B Ne
C Ar
D Xe
The most abundant inert gas in the atmosphere is
A Helium
B Neon
C Argon
D Krypton
পৃথিবী পৃষ্ঠে একটি ইটের ওজন 81 N. পৃথিবীর অর্ধেক বাসার্ধের সমান উচ্চতায় এবং অর্ধেক বাসার্ধের সমান গভীরতায় ইউটির উপরে পৃথিবীর অভিকর্ষ বলের মান কত হবে?(A brick weighs 81 N on the surface of the earth. What are the earth's gravitational forces act on it at a height of half of the radius of the earth and at a depth of half of the radius of earth, respectively?)
A 36 N and 81 N
B 36 N and 40.5 N
C 36 N and 20.25 N
D 98 and 40.5 N
E 81 N and 81 N
Which of the following is the most abundant metal on Earth's crust?
A Magnesium
B Iron
C Copper
D Aluminium
The most abundant metal in the Earth's crust is
A zinc
B copper
C aluminium
D iron
Which one of the following elements is most abundant in the earth's crust?
A Oxygen
B Sulphur
C Silicon
D Carbon
Which metal is most abundant in the earth's crust?
A Calcium
B Magnesium
C Aluminium
D Iron

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