Most meteorites are
A) carbon-rich and primitive.
B) rocky and primitive.
C) carbon-rich and processed.
D) rocky and processed.
E) iron-rich and processed.
Question 2
What happens to the surface temperature and luminosity when gravity first assembles a protostar from a collapsing cloud?
A) Its surface temperature and luminosity increase.
B) Its surface temperature remains the same and its luminosity decreases.
C) Its surface temperature and luminosity decrease.
D) Its surface temperature decreases and its luminosity increases.
E) Its surface temperature and luminosity remain the same.
General differences in food webs and carbon flow among terrestrial and aquatic ecosystems (adapted f
Carbon Orbitals
Fate of the Amino acid carbon skeletons
Amino Acid carbon skeleton
Carbon Dioxide Concentrations for 400,000 years
Exchange of Oxygen and Carbon Dioxide