Which career is most concerned with the study of radioactive isotopes?

The career in the nuclear laboratory, atomic research centre is most concerned with the study of radioactive isotopes. Also the nuclear thermal power plant, advance military services weapon, research and development are concerned with the study of radioactive isotopes.

b) returns freshwater to the earth.

c) returns freshwater to the earth.c) occurs after condensation.

d) returns freshwater to the earth.c) occurs after condensation.d) roughly equal to the amount of evaporation.

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b. a lightning bug, plug of grass, and a worm