Robert Boyle
Boyle was an Irish natural philosopher and physicist and is credit today with coming up with "Boyle's Law"
Punch card voting device uses data processing cards and a small clipboard sized device for taking records of the vote. The major problem with punch card voting devices is that people who are voting might not produce clean punches.
Answer:
A
Explanation:
During the 1700s and 1800s, colonists took part in the American Slave Trade, where they drove thousands of Africans out of their home countries and forced them to work for the Americans. Due to the color of the Africans' skin, colonists thought that they were inferior to Americans/whites and that colonists could then work Africans without any pay.
This kind of work not only gave colonists a sense of freedom because they no longer had to endure the backbreaking work, but it also relieved them of financial burden since they didn't have to pay their slaves.
Look for an answer choice that matches the above description. Only A makes sense.
B is wrong because people were not required to have slaves. They could if they wanted to.
C is wrong because it was not illegal to pay slaves; colonists just chose not to because that would benefit them more.
D is wrong because it was not illegal for others to do work; in fact, many colonists did work on their own farms before, during, and after the Slave Trade.
Hope this helps!
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The correct answer is A. rainforests are responsible for most global oxygen turnover.
This is not true because rainforests, even though they have a lot of trees, are very humid, and actually take up a lot of oxygen to be able to 'feed' the vegetation found there. Other forests actually provide most oxygen in the world, but not rainforests. The other options are correct.