The main causes of the first world war were:
<h3>Militarism</h3>
There was a growth of millenarianism in nations. many nations had sophisticate weapons and well trained military.
<h3>Alliances</h3>
The alliances that were formed between nations was part of the war. There were the axis and the allied powers.
<h3>Nationalism</h3>
The increase in nationalism and the need to protect country and property was a part of the war.
<h3>Imperialism</h3>
Some nations has powers over other countries. They controlled the affairs and the resources in these areas.
<h3>Death </h3>
The killing of Franz Ferdinand was partly the reason why the war started.
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Diego Rivera’s paintings celebrated Mexico’s history ad people.
<u>Explanation:</u>
Diego Rivera was a famous Mexican painter whose frescoes started the Mural movement in Mexican art. Rivera had participated in the Revolutionary Union of Technical workers in 1922 and joined the Mexican Communist Party. His famous murals reflected the Mexican society and the 1910 revolution.
Using bold figures and simplified colors was Rivera’s style. All his mural paintings were in fresco alone. All his paintings told stories of revolution and Mexican society of that period. His mural ‘fertile land’ depicts the peasant and working class people of Mexico by demonstrating their revolutionary struggles.