Fox talbot - <span>Photographs
isaac singer - </span>Sewing machine
<span>Etienne Lenoir - <span>Gasoline engine
</span></span><span>Alfred Nobel - <span>Dynamite
</span></span><span>Wilhelm Roentgen - <span>X-rays</span></span>
D: buying and selling online
Motivations for colonization were to extract gold and silver from the Americans, to stimulate the Spanish economy and make Spain a more powerful country.Spain was also aiming to convert all native Americans to Christianity.
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They were known as the federalist
Answer: Unions have historically formed to ensure fair wages, benefits and better working conditions for their members.
Explanation: