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9.1
| Question | Answer |
|---|---|
| when did the human population reach 1 billion people | 1850 |
| how long did it take the human population to double to 2 billion people | 50 years |
| what factors caused the human population to increase | better healthcare, technology, and sanitation |
| what might happen to resources if the population continues to rise | population may die out |
| what is carrying capacity | the amount of resources available to feed other resources |
| what likely happened to resource availability when Species X reached its carrying capacity | it grew a little and then it started to die out |
| what is a population | a group of organisms living in one area at the same time |
| what is a population explosion | when population grows fast, exponentially |
| about when did humans experience a population explosion | 1800 |
| what reasons might have led to the population explosion | better healthcare, technology, and sanitation |
| summarize how human population has changed over the past 2000 years | it went from 1 billion to 6.7 billion |
| describe how the species X changed over time | exponential growth |
| what factors might have led to the increase in the population of species X | increased food |
| what likely happened to resource availability when species X reached its carrying capacity | decreased |
| does earth have enough resources to support the human population | yes, unless in an undeveloped country |
| how does carrying capacity relate to resource use | the amount of resources determine this |
| what might happen to the amount of resources on earth if humans exceed their carrying capacity | decrease |
| what impacts can mining have on habitats when it pollutes soil and water | negative |
| which increase in the human population happened in the last few centuries | greatest |
| which amount of resources does earth have | limited |
| the human population is about 6.7 | billion |
| carrying capacity is which number of individuals of a given species that earths resources can support | largest |
| whats the effect of improved health care | it lowers the amount of sickness |
| when did the human population begin to increase sharply | 1800, J shape |
| describe the growth of the human population for most of human history | linear growth, steady growth |