Answer:
Result of the formation of positive and negative ions.
It’s either the first or second one
I think it’s the first one - the outer cells of the blastocyst
Answer:
Solar power
Or in some cases, from heat from the sun. ... Solar energy is a renewable free source of energy that is sustainable and totally inexhaustible, unlike fossil fuels that are finite. It is also a non-polluting source of energy and it does not emit any greenhouse gases when producing electricity.
Explanation:
Your answer would be D, single replacement
