This diagram shows a lunar eclipse. during a lunar eclipse, the earth is
a) behind the sun and the moon.
b) in between the sun and the moon.
c) in front of the sun and the moon.
d) next to the sun but not the moon.

his research revealed two genetically different groups of prokaryotes, which justified splitting kingdom monera into two kingdoms. the genetic and cellular differences were so great, that these two kingdoms were eventually placed into different domains in the current three-domain system.

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