Answer:
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Due to the external atmospheric pressure. Initially the pressure inside the can is balanced by the atmospheric pressure. But as the air is removed from inside, the external pressure dominates.
Answer: The correct answer is : (B) False
Explanation: The different types of housing varied according to the environment and climate. The natives were very creative when using natural materials. They built various types of houses such as: igloo, wigwam, hogan, kiva, board houses, herb houses, chickee and one of the best known types of housing is the tipi. The teepee was usually made with bison skins.
The British government led by David Cameron held a referendum on the issue in 2016; the electorate decided by a 3.8% majority to favour leaving the European Union.
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