The principal constituent of the atmosphere of the Earth is? a) Oxygen b) Carbon c) Hydrogen d) NitrogenΒ About 78% of the Earth’s atmosphere is composed of nitrogen. γππππππππγ This Page in PDF File NOW!!! Read more articles Previous PostThe SI unit of electric current is? Next PostWhat is Dry Ice? Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment. Δ You Might Also Like What does PDF stand for? January 6, 2023 Equinox is a unique phenomenon which means: July 14, 2023 Which of the following will you use to remove rust stains on cloth? December 13, 2022 Is bronze an alloy, what is it made up of? August 22, 2020 One barrel oil is equal to _____ liters: January 6, 2023 Medicines used to kill weeds are known as: July 13, 2023