Answer:

Explanation:
The equation for density is:

We plug in the given values:


As of now, the nuclear fission is the most feasible energy source for human use. All the nuclear power plants are based on the controlled nuclear fission reaction, where the unstable nucleus is bombarded with high speed neutrons, thus, splitting the nucleus into stable ones and releasing huge amount of energy. The nuclear fusion requires very high temperature, the temperature equal's to that of the sun. Hence, it is not feasible right now. As the technology advances, we will see advancement in other form of energies.
The students conclude the cells are plant cells.
ACID: A substance that accepts a lone pair of electrons
BASE: A substance that donates a lone pair of electrons
:D