Which element is obtained by plants in both gaseous and liquid form?
Oxygen
Carbon
Hydrogen
Nitrogen
Oxygen; it is obtained in gaseous form as CO2 along with carbon and in liquid form as H2O along with hydrogen.
Which element is released by plants in both gaseous and liquid form in the process of photosynthesis?
In human body which element is most abundant by weight and by number respectively?
a) carbon, hydrogen
b) oxygen, hydrogen
c) oxygen, carbon
d) carbon, nitrogen