Question 6 Which of the following statements is true about
crustal rocks at a mid-ocean ridge?
A Crustal rocks become older as their distance from mid-
ocean ridge increases.
B Crustal rocks to the east of a mid-ocean ridge are older
than crustal rocks to the west.
C Crustal rocks to the west of a mid-ocean ridge are
older than crustal rocks to the east.
D Crustal rocks become younger as their distance from a
mid-ocean ridge increases.
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the transfer of energy between two molecules spaced just nanometers apart plays a key role in many technologies, including photovoltaics, quantum information systems, lighting, and sensors, as well as in biophysics to measure nanometer distances and in photosynthesis. but an open question in this area is what effect, if any, the surrounding photonic environment has on this nanoscale energy transfer. by designing and performing a carefully controlled experiment to answer this question, scientists have settled the debate and found clues to improving the efficiency of many of the technologies that rely on this process.

explanation:

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.