what are *4* positive and *4* Negative impacts of the Columbian Exchange? please answer this question and you will be merited 40 points. Thankyou :)

positive : Crops providing significant food supplies were exchanged. ...

Better food sources led to lower mortality rates and fueled a population explosion. ...

Livestock and other animals were exchanged. ...

Horses were reintroduced to the New World. ...

Negative : Diseases were a huge negative impact. Diseases such as small pox and syphyllis were brought to the Americas by the Europeans and wiped out a large amount of the New World's population.

While slavery had a bit of a positive light, it was mostly a negative thing. ...

Wars were also a huge negative impact.

Explanation:

i only could think of three negative but i hoped this helped.

this forms a narrow, steep sided inlet (sometimes deeper than 1300 metres) connected to the sea. the terminal moraine pushed down the valley by the glacier is left underwater at the fjord’s entrance, causing the water at the neck of the fjord to be shallower than the main body of the fjord behind it.

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