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gavmur [86]
3 years ago
15

What did the curies conclude about radioactivity based on their studies?

History
1 answer:
svetlana [45]3 years ago
8 0


Answer: Marie Curie studied the radiation of all compounds containing the known radioactive elements, including uranium and thorium, which she later discovered was also radioactive. She also found out that:
- you can exactly measure the strength of the radiation from uranium;
- the intensity of the radiation is proportional to the amount of uranium or thorium in the compound - no matter what compound it is;
- the ability to emit radiation does not depend on the arrangement of the atoms in a molecule; it must be linked to the interior of the atom itself - a revolutionary discovery!
When she realized that some uranium and/or thorium compounds had stronger radiation than uranium, she made the following hypothesis: there must be an unknown element in the compound which had a stronger radiation than uranium or thorium. Her work aroused the interest of her husband, Pierre Curie, who stopped his own research on crystals and joined the "detective work" with his wife. And Marie was proven right
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The Democratic Party believes in cutting taxes for the middle and lower classes and raising them for the upper class. Democratic views on taxes also include the belief that an overhaul to the tax code and system are necessary. They vehemently oppose tax cuts such as those made by George W. Bush that provide relief to the wealthy in addition to the middle and lower classes, stating that the United States needs “a tax code that rewards work and creates wealth for more people, not a tax code that hoards wealth for those who already have it. With the middle class under assault like never before, we simply cannot afford the massive Bush tax cuts for the very wealthiest.” Democrats believe that, seeing as the 1990s were a prosperous time for America, tax code should be brought back to its state during this era.

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HeLpp picture above
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I think your answer is D. Not 100% sure tho

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How did the rights of dalits, or lower-caste Indians, change in democratic India?
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The democratized India has forever banned the use of the caste system used by members of the Hindu religion. When the system was allowed, the Dalits were marginalized, had no rights guaranteed and could only perform works related to feces of the people of higher castes .With the end of the caste system, the Dalits should be considered ordinary citizens with equal rights and duties to the rest of the population.

The creation of the Atrocities Prevention Act in 1995 protected the Dalits from discriminating against superior castes. Anyone who disobeys this law would be automatically arrested without bail.


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