Answer:
The iron core, copper wire, and an electricity source.
Explanation: Me
Answer:

Explanation:
Hello,
In this case, it is convenient to compute the car's mileage in km/L as follows:

In such a way, since the distance is measured to be 250 km, the volume requirement is:

Regards.
Hetero means different. Examples could be heterogenous (different in form) or heterozygous (having two different forms of a gene).