The most common element on the earth's crust by mass :
AFermium
BIron
CNitogen
DOxygen
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
The primary substance used for vulcanizing rubber is
ഒരു മൂലകത്തെ മറ്റ് മൂലകങ്ങളിൽ നിന്ന് വ്യത്യസ്തമാക്കുന്ന കണം ഏത്?
Atomic number of Bromine ?
The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon?
Which of the following is used as a moderator in nuclear reactors?