Answer:
Isotopes can both be the same element but have a different number of electrons
Explanation: not sure if more was supposed to be there, but i tried
Roygbv evjnefvvnefv ekfv k kn ke nv
Steel paper clip because it can be moved by the magnet and it is lighter than the iron nail
advantages
1.Less flooding
2.Less erosion
3.Return of natural ecosystems
disadvantages
1. People go hungry
2. People don't get the water they want
3. People don't get the land they want for homes
Answer: B superconductors
Explanation: