Physical change is where u change physically or on the "outside" hope this helps, have a great day!
My answer is....A
sorry if im wrong
Answer: A)There is a high ratio of energy to cost
Positives:
A Chunk of Uranium can power a city a lot longer than a chunk of coal.
It also does not contribute to pollution since what comes out of the tower is steam.
Negatives:
It is very expensive to build and maintain a nuclear power plant at first so investors whom want money up front are more reluctant to loan money for one.
If the plant does melt down it is very bad for the enviroment and its people, for example Chernobyl Nuclear Power Plant in the Ukraine will not be able to be lived in for approximently 20,000 years.
MgF2 is <span>Magnesium fluoride
hope this helps!</span>
In an experiement things that are changing are called variables.
