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9.1

QuestionAnswer
1 Mining can have a (positive/negative) impact on habitats when it pollutes soil and water 1 Negative
2 The (greatest/smallest) increase in human population happened in the last few centuries 2 Greatest
3 Earth has a (limited/unlimited) amount of resources 3 Limited
4 The human population is about 6.7 (million/billion) 4 Billion
5 Carrying capacity is the (largest/smallest) number of individuals of a given species that Earth's resources can support 5 Greatest
6 Cause: Improved health care 6 Effect: Carrying capacity
7 when did the human population reach 1 billion people 7 1850
8 How long did it take the human population to double to 2 million people 8 50 years
9 When did the human population begin to increase sharply 9 1800
10 What factors caused the human population to increase 10 Improves health care Clean water Other technological advancements
11 What might happen to resources if the population continues to rise 11 Resources will be diminished quickly
12 Summarize how human population has changed over the past 2000 years 12 There has been a steady increase from certain times. then a population Explosion
13 What is population 13 All the numbers of a species living in a given area
14 What is a population explosion 14 Sudden rise in human population that has happened in recent history
15 About when did humans experience a population explosion 15 1800s
16 What reason might have led to the population explosion 16 Improved health care, clean water, technological advancements
17 How many people live on Earth today 17 6.7 billion
18 Does Earth have enough resources to support the human population 18 Depending on where you live
19 How does the carrying capacity relate to resource use 19 Amount of resources depends on the carrying capacity
20 What might happen to the amount of resources on Earth if humans exceed their carrying capacity 20 Population will go down
21 The largest number of individuals of a given species that Earth's resources can support and maintain for a long period of time 21 Carrying Capacity
22 A natural source of supply or support 22 Resource
23 From Latin populus means people 23 Population
24 Not all human activities have a negative impact on the environment 24 Some have positive impacts
25 Earth's population has went up immensely in the last few _____ 25 Centuries
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