Because that can poison our drinking water, also the animals and plants that we eat are being affected by this because of the polluted water.
1 - A
2 - A
3 - A
Explanation - I just looked it up
Answer:
It is estimated that by the early 16th century as much as 10% of Lisbon's population was of African descent. After the European discovery of the American continent, the demand for African labour gradually grew, as other sources of labour - both European and American - were found to be insufficient.
Answer:
very important
Explanation:
Trade between two agents or countries allows the countries to enjoy a higher total output and level of consumption than what would have been possible domestically. Canada and Mexico can each specialize in the good they have a comparative advantage in and exchange with one another.
Answer:
Egbert was the first mounarch.
Explanation: