During the calvin cycle:
a)glucose and water are produced.
b)light energy is absorbed by chloroplasts.
c)oxygen is released through stomata.
d)all of the above.

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%

a = executive branch; b = judicial branch

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

hope this