ALL ANSWERS - CHAPTER 1 The number of great natural...

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CHAPTER 1 The number of great natural disasters ( figure 1.4 , pg 4) shows an increasing trend over the last 50 years, what is the likely reason? - the fact that the human population on Earth has more than doubled in that time The concept of carrying capacity refers to _________ - the size of a population that can subsist on available resources The rate of world population growth has decreased from 1.8 percent in 1990 to 1.2 percent in 2005. What factors appear to have caused this dramatic decrease? - both C and D As the magnitude of natural disasters increases their return period _______ - increases The word “disaster” means. .. - bad star What best describes the view of Earth from space? - it is mostly blue with swirls of white Which of the following disasters has consistently killed the most people in the U.S. year in and year out? - lightning Some interpretations of ancient texts hold that cultures from around the world might have witnessed a fantastic and scary light show in the sky, ~3200 YBP, that was related to. .. - a comet coming very near Earth The concept of carrying capacity refers to _________ - the size of a population that can subsist on available resources At a 1.2% growth rate the doubling time would be - 60 years 1
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- Growth consisting of multiplying the population by the same factor every year. The concept of carrying capacity refers to _________ - the size of a population that can subsist on available resources Genetic researchers have presented evidence that between 70 and 80 thousand years ago our human population went through a bottleneck where there may have been as few as 5 to 10 thousand individuals (a near extinction event). What happened between those years that may have played a role? - a giant volcanic eruption happened near the equator at Toba in what is now Indonesia What best describes the view of Earth from space? - it is mostly blue with swirls of white If you deposit 10,000 in growth fund that increased your money by 20 percent each year, how much would be in your account in 7 years? (USE THE RULE OF 72) - ~40,000 What best describes the view of Earth from space? - it is mostly blue with swirls of white The concept of carrying capacity refers to _________ - the size of a population that can subsist on available resources The impact on human population of women having 1.6 versus 2.6 children per woman is. . - the difference in world population between 3.6 and 27 billion in 2150 In terms of population growth, the phrase doubling time refers to ___________ - period of time required to double the present population The carrying capacity of the Earth is ________________. -
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ALL ANSWERS - CHAPTER 1 The number of great natural...

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