1) <span> The fusion reaction (hydrogens form helium) in the Sun syplies our planet with all of the energy.
2) Nuclear bombs -</span><span>uncontrolled fission reaction creates mass destruction.
3) </span><span>Nuclear power plant - controlled fission reaction suplies homes with electric energy.
</span>Nuclear fission<span> is </span>nuclear reaction<span> in which the </span>nucleus<span> of an atom splits into smaller parts.</span>
N - 15 undergoes beta decay and has a half-life of less than 1 minute.
Explanation;
Writing scientific notation :
- Move the decimal to the left side until single digit of number remains before the decimal.
- Then we will count the number of times we moved the decimal. Write this number as the exponential power of number '10'.
- For Example:

Radius of the sun = 696,000.0 kilometer

Radius of the sun can also be written as =
Size of bacterial cell =
millimeter

Size of bacterial cell can also be written as = 
Answer:
Electrical Energy
Explanation:
There are a variety of chemical and mechanical devices that are called batteries, although they operate on different physical principles. A battery for the purposes of this explanation will be a device that can store energy in a chemical form and convert that stored chemical energy into electrical energy when needed.