Radium was discovered by Maria Sklodowska-Curie -the correct answer is b. Actually she discovered it together with her Husband, Pierre Curie, they obtained it from a uranite sample.
Answer:
9/13 so technically the answer is C). three-fourths
Explanation:
<h2>Mark me Brainliest Please.</h2>
Answer:
D. Southerners cited tariffs protecting domestic industries as a major grievance against the United States government
Explanation:
The factor that most supports the idea that regional economic differences were a major cause of the civil war is "Southerners cited tariffs protecting domestic industries as a major grievance against the United States government."
The above statement shows that southerners were complaining about tariffs is favoring the northern region because it protects domestic industries. The northern region of the United States has an economy based on industries in which tariff is protecting for them, however, the Southerners don't like that situation.
Answer:
Correct answer is constructing the Panama Canal
.
Explanation:
First and last options are not correct as Roosevelt became president in 1901, while the revolution in Cuba and defeat of Spain ended by 1898.
Second is correct as during his presidency the construction of Canal started in 1904.
Third option is not correct as it hasn't spread that much during his presidency.
The League of Nations was established after WW1 to keep peace. There is currently a “United Nations” there goal is to promote peace and prevent war through diplomacy, just as the League of Nations.
Now whether or not you believe the concept of a League of Nations is good or bad is up to you, i hope this helped! :)