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chapter 9.1

People and environment

QuestionAnswer
The largest number of individuals of a given species that Earth's resources can support and maintain for a long period of time. Carrying capacity
The amount of people living in a given area. Population
The amount of resources in an area. Resource
Mining can have a _______ impact on habitats when it pollutes soil and water. Negative
The _______ increase in human population happened in the last few years. Greatest
Earth has a _____ amount of resources. Limited
The human population is about 6.7 _____. Billion
Carrying capacity is the _______ number of individuals of a given species that Earth's resources can support. Largest
_____________ has increased population because people are living longer because of better health. Improved health care
Why did human population increase? Because of better technology.
What might happen to resources if the population continues to rise? We will reach our carrying capacity.
Describe the growth in human population for most of human history. linear growth
when did the human population reach 1 million people? Around 1850
How long did it take human population to double to 2 million people? About 50 years
When did human population begin to increase sharply? About 1900
What factors have lead to the increase in population of species? There were more resources then than now.
What happens to species when they find their carrying capacity? The fluxulate.
What happens when the species reaches their carrying capacity again? The population will drop dramatically.
What curve does a population show on a graph? A (j) curve.
The sudden rise in human population that has happened in recent history. Population explosion
About when did humans experience population explosion? About 1800-1900
How many people live on the Earth today? About 6.7 billion
Does Earth have enough resources to support human population? yes
Created by: hodsoale7806
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