alleryશુષ્ક હવામાં ઓક્સિજનનું આશરે કેટલા ટકા પ્રમાણ હોય છે?
A12 ટકા
B15 ટકા
C18 ટકા
D21 ટકા
Answer & Solution
Correct answer: D. 21 ટકા
પૃથ્વીના શુષ્ક વાતાવરણની હવાના કદમાં ઓક્સિજન આશરે 20.95 ટકા હિસ્સો ધરાવે છે.
Keep practising World Geography and Environment
Browse all World Geography and Environment questions for RRB NTPC, or explore more General Awareness topics.
Related questions
RRB NTPC · Climate Change ProtocolsRRB NTPC · Oceans and Earth FeaturesThe ozone layer that absorbs ultraviolet radiation is situated primarily in the:In which atmospheric layer do virtually all clouds and weather phenomena occur?Which gas is the most abundant by volume in Earth's dry atmosphere?Which is the deepest oceanic trench on Earth?Which strait separates the continents of Asia and North America?Which is the largest hot desert in the world?