The strongest light left over from the big bang is called background radiation and was given off as which type of wave?
A. Radio waves
B. Visible light
C. Microwaves
D. Gamma rays

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.

1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?