Answer: I-131, P-32, Sr-90, Co-60 & Technetium.
Explanation: Isotopes like I-131 are used to diagnose goiter in thyroid gland and isotopes like P-32 Sr-90 are used for treatment of skin cancer and Co-60 for cancer and technetium is used to monitor bone growth.
As long as the moon orbits the Earth in the same way, the phases will be the same.
B) It is turned by water to produce a direct current....... hope it helps :)
Answer: Melting, evaporation and sublimation.
