The correct answer is option <u><em>B) religious differences.</em></u><u><em>
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Although there were religious differences between the intervening countries, there were both in opposing and allied countries, and the religious aspect did not play an important role as cause of the war.
The powers of the time competed for the control of the colonies of Africa, Asia and America mainly with the desire to get raw materials in the height of the Industrial Revolution.
In order to obtain more and more colonies, deploy overseas trade, and defend themselves against other powers, some European nations had developed an army and very powerful armies.
Nationalisms were booming at that time and many mutual protection agreements had been established between different countries in the face of foreign attacks on one of them.
There were ethnic groups in the Austro-Hungarian Empire that considered themselves as nations, such as the Italians, the Serbs and the Magyars.
The beginning of the war was born from a specific event that unleashed declarations of war between countries that forced to enter their successive military allies.
For the answer to the question above, e<span>ven though the majority of birds after 1977 had deeper beaks, there was still variation in beak size in the population. As seed type and seed availability changed, birds with beaks suited to exploit abundant seeds had higher reproductive success.</span>
Carnegie created a monopoly and he did this by investing in new technology which helped him grow his steel corporation. He went to other factories took their ideas and incorporated them into his. He also bout other companies that would help his own companies. In growing his monopoly he used vertical integration, he combined all of his companies into one large one which he named Carnegie Steel. He had the raw materials, his own manufacturing sites and steel mills and a way to transport his product. This is vertical integration, get the materials, make the steel, and ship it.