At the time of founding for the 13 colonies, slavery was legal in every one of them.
<span>B. The route from England to west Africa involved the exchange of European materials and goods for African slaves to be sold in the Americas. is true of triangular trade</span>
No, this is false, since the real terms for the energy necessary to overcome the attractions of electrons to the nucleus is referred to as "ionization energy".
Neolithic people developed systems of mathematics for reasons of travel for reasons of trade, for reasons of buying stuff from other people in general. Another reason was their natural curiosity which needed to be satisfied.