Answer:
Smallpox has had a major impact on world history, not least because indigenous populations of regions where smallpox was non-native, such as the Americas and Australia, were rapidly decimated and weakened by smallpox. During the 18th century the disease killed an estimated 400,000 Europeans each year, including five reigning monarchs, and was responsible for a third of all blindness. After successful vaccination campaigns throughout the 19th and 20th centuries, the WHO certified the global eradication of smallpox in December 1979. Smallpox is one of two infectious diseases to have been eradicated.
Explanation:
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<span>Downcutting (also known as rejuvenation) of a stream may be due to the uplift of land. It is a process by the action of the hydraulic that makes the channel of the valley or stream by simply get rid of any material on the floor of valleys and streams. Downcutting speed is determined by the base level of the stream. It is the lowermost point that a valley or streams can lose.</span>
Answer:
Option (C)
Explanation:
San Andreas is a prominent example of a transform fault, in which the plates namely the Pacific Plate and the North American plate slide past each other. The movement of the associated plates in this fault is in the right lateral, strike-slip. With the continuous and rapid movement of both the plates in its respective direction, the west side of the fault would get detached from the fault zone and lead to the formation of an island. The movement of the plates along this fault is responsible for the occurrence of shallow focus tremendous earthquakes.
Thus, the correct answer is option (C).
Answer:
When a line bisects an angle, it divides the angle into two congruent angles.
Angle FGH = Angle HGI
4x - 6 = 5x - 15
x = 9
Substitute x into angles.
Angle FGH = 4(9) - 6 = 30°
Angle HGI = Angle FGH = 30°
Angle FGI = Angle FGH + Angle HGI
= 30 + 30
= 60°
Answer:
The rich countries of the world were, in fact, the former colonial empires, such as: the French Empire, the Spanish Empire, the Portuguese Empire, the Dutch Empire. All these empires owned colonies in South America, Africa, and Asia. Thus, a large part of the resources of the "colonial countries" were transported to the "mother empires", so the colonized countries were left without resources. Precious ores, gold, silver, diamonds from South Africa were transported to "empires", from which we deduce that the financial resources obtained from the sale of precious ores entered the budget of the colonial empires.
