Answer:
Light travels in waves, and we call this traveling propagation. Propagation of waves has both a speed and a direction, called the velocity. The velocity of light changes depends on the material it travels through.
Light waves can be changed in a few different ways. Reflection is when the waves bounce off a surface and change direction, like when they hit a mirror or pool of water. Diffraction spreads out light waves as well
Explanation:
The action of napoleons that caused the greatest human losses was invasion of Russia
The growth of port cities in Southeast Asia brought lot of new immigrants from China and India.
Explanation:
The European colonialism was spread out around much of the world. Southeast Asia too was conquered and colonized for certain period of time. The Europeans had big interest in this region because of its excellent strategic location, as well as because it was rich in multiple resources. Once the Europeans managed to gain full control over Southeast Asia they started to develop the port cities, which led to their rapid growth and became very attractive for the people to move in.
- Lot of people saw the port cities as good places where they can find opportunities to prosper, so there was large scale migration toward them.
- The migration toward the port cities was not just from the interior of the region, but also From other places, such as China and India.
- While lot of people migrated in these places willingly, some were actually brought by the Europeans as labor force.
- The number of Chinese and Indians was so large, that some areas became dominated by them, or in some regions they were the largest minority groups.
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Roal Amunsen was the first.
