A folded rock can wear away, allowing new layers to be laid down on much older rocks. The meeting of these two rock layer creates an unconformity—a gap in the rock record. Which process wears away these older rock layers?
O A fault
O B. eruption
о
C. erosion
D. igneous intrusion

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.

The biosphere of the earth is made up of what compound? organic or inorganic?