The source of energy of the sun is
The transformation of Hydrogen atoms into Helium atoms with an emission of vast amount of energy is called nuclear fusion which is the source of energy for the Sun.
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Which of the following pairs is INCORRECT?
I. Haematite : Iron
II. Pitchblende : Copper
III. Monazite : Thorium
Which among the following is NOT a member of any of the two Houses of the Indian Parliament?
I. Prime Minister of India
II. Finance Minister of India
III. President of India
_______contributes towards global warming so it is called a greenhouse gas.
_____ is not caused by airborne transmission.
Which of the following books is NOT of Surdas?
Which of the following statements is/are true or false?
Statements :
A) H2S burns in air to give H2O and SO2
B) The decomposition of Ferrous Sulphate into Fe2O3, SO2 and SO3 occurs in the presence of heat.
Plaster of Paris ______.
I. changes into gypsum on mixing with water
II. is CaSO4.2H2O
III. is used for decoration