(A) Star
(B) Planet
(C) Asteroid
(D) Meteor
Category: General Science Mcqs
The average adult has a blood volume of about ________ liters.
(A) 4
(B) 5
(C) 6
(D) 7
The most abundant element in the universe is
(A) Oxygen
(B) Hydrogen
(C) Carbon Dioxide
(D) Silicon
The most abundant element in the Earth’s crust is
(A) Oxygen
(B) Hydrogen
(C) Carbon Dioxide
(D) Silicon
Each day human body breathe in ________ liters of air.
(A) 5,000 to 10,000
(B) 10,000 to 15,000
(C) 15,000 to 20,000
(D) 20,000 to 25,000
For a fixed mass of gas at constant temperature, if we decrease volume, the pressure will
(A) also decrease
(B) increase
(C) remains constant
(D) none of these
The lifespan of Red Blood Cells is __________ days.
(A) 60
(B) 120
(C) 180
(D) 240
The density of water is
(A) 1 g/cm3
(B) 1.5 g/cm3
(C) 2 g/cm3
(D) none of these
Radioactivity was discovered by
(A) Lord Kelvin
(B) J. J. Thomson
(C) Ernest Rutherford
(D) Henri Becquerel
The Sun’s mass is mainly consist of hydrogen about 73%. The second main constituent (about 25%) is
(A) hydrogen
(B) helium
(C) carbon dioxide
(D) nitrogen