1.) Economic - motives included the desire to make money, to expand and control foreign trade, to create new markets for products, to acquire raw materials and cheap labor, to compete for investments and resources, and to export industrial technology and transportation methods.
2.) Political- motives were based on a nation's desire to gain power, to compete with other European countries, to expand territory, to exercise military force, to gain prestige by winning colonies, and to boost national pride and security.
3.) Religious- motives included the desire to spread Christianity, to protect European missionaries in other lands, to spread European values and moral beliefs, to educate peoples of other cultures, and to end slave trade in Africa.
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I think his proof will be totally unacceptable today.
Ptolemy believed that the Earth is the center of the universe, not the Sun.
For his proof, he stated that The Earth is not moving while the sun does , and the force of Gravitation attracted toward the earth.
His statement above will be easily disproved if they have an advanced technology such as satellite to monitor the earth's positions in the orbit.
The third alternative is correct (C).
There is incorrect information that the Lemming commit collective suicide.
By the necessity of eating, the lemminges move in mass, behind food. In nature, any migration involves some dangers and death is always a threat on the prowl. Lémmingues simply act according to their instinct for survival. One animal follows the other. In the famous case is the precipice, what happens and a herd effect. One individual shifts and falls, and others follow. Talking about suicide would involve a will. Therefore, the mass suicide of lémmingues is false.
