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9.1
people and environment
Question | Answer |
---|---|
Mining has what effect on the environment an habitats when it pollutes soil and water. | Negative |
The greatest or smallest increase in human population has occurred in the last few centuries. | Greatest |
Earth has a what amount of resources? | Limited |
The human population is about 6.7 what? | Billion |
Carrying capacity is the what number of individuals of a given species that Earth's resources can support? | Largest |
Describe the growth of the human population for most of human history. | Stayed same |
What might happen to resources if the population continues to rise? | The amount will decrease |
Describe how human population has changed over the past 2,000 year. | Increased greatly |
What factors might have led to an increase in species? | More resources, etc |
What happens when a species reaches its carrying capacity? | The species will decrease |
What is population? | All members of a species |
All members of a species living in a given area is what? | Population |
About how many people live on Earth today? | 6.7 billion |
6.7 billion is about the given number for what? | How many people live on Earth today |
What might happen to the amount of resources on Earth if humans reach their carrying capacity? | Decrease |
The total amount of animals or species that can be held in a specific area? | Carrying capacity |
All of the animals living in a specific area or habitat is the what? | Population |
A source or supply is called what? | Resource |
If a species reaches its carrying capacity this might decrease greatly. | Resource |
When did the human population reach 1 million? | 2000 |
If the population continues to rise this might happen to the resources. | Decrease |
The largest number of individuals of a given species that Earth's resources can support or maintain is called what? | Carrying capacity |
What likely happens to resource availability when a species reaches its carrying capacity? | Decreases |
Do you think the human species will reach its carrying capacity? | Yes |
Do you think one day human resources will be gone? | Yes |