Why might the following nuclear reaction not be very good for energy production in a fission reactor?
U ? 
Ba + 
Kr + 1 neutron
A. The mass of the by-products is too high and therefore the energy released will not be high enough.
B. The material only produces one neutron so the chain reaction will not be very efficient.
C. Interatomic attraction between the products will impede the efficient separation of the atoms from the unstable nuclei.
D. There are too many products produced.
E. The products are too large.
Answer: B
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a) melting of the plates as they move apart as a result of frictional heating b) increased pressure from plate movement c) pressure being reduced (decompression melting) as the plates move apart d) water being released under pressure which lowers the melting temperature of the overlying asthenosphere e) hot spots, which always occur along divergent boundaries
Brain drain is
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Answer the following statement true (T) or false (F)
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