Causes:
nationalism
alliances (I think this is the biggest cause)
the assassination of archduke Franz Ferdinand.
I think that alliances were the biggest cause if world war 1. this is because the original dispute was only between two countries and because of the alliances the other more powerful countries had to step in. For example, the triple alliance and the triple entente were the two main alliances in ww1. Because the alliances were made up of lots of countries, they all got dragged into the dispute, causing a much bigger war than there needed to be.
so yeah idk rlly, hope this helps :)
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
7-2x = x-14
-7 -7
-2x = x-14-7
-2x = x-21
-1x -1x
-3x = -21
÷-3 ÷-3
x = 7
The Battle of Okinawa was the victory and it was the bloodiest battle
The answer for your question is a
