What are the important relics of the quark epoch? Why?
What will be an ideal response?
Question 2
What prevents a brown dwarf from undergoing nuclear fusion?
A) Degeneracy pressure halts the contraction of a protostar so the core never becomes hot or dense enough for nuclear fusion.
B) There is not enough mass to maintain nuclear reactions in a self-sustaining way.
C) The surface temperature never rises high enough for the radiation to be trapped and heat their interior to the temperatures required for nuclear fusion.
D) Radiation pressure halts the contraction of a protostar so the core never becomes hot or dense enough for nuclear fusion.
E) There are too many heavy elements and not enough hydrogen for fusion to occur in a self-sustaining way.
Rituals such as the sacrament of the Anointing of the Sick are important expressions of religious be
This young child is pulling at the ear and acting fussy, two important signs of otitis media.
Important Human Viral Table
Climate change is an important vector for human diseases
Important Bonds in Biological Molecules
Important Land Ecoregions