Paving the land and making roads helps keep our land from flooding.
False
When the population of a species is low, resources are low. T/F
False
We need a lot of space to grow crops. T/F
True
Soil erosion can lead to desertification. T/F
True
How many people are currently on our planet?
8 billion
These are the major causes of a population explosion:
Better hygiene Accessible medicine. Better living conditions
If the population of a species is abundant, resources are lower. T/F
True
Deforestation leads to:
Climate change
Rates of photosynthesis decrease when large areas of trees are cut down, so more carbon dioxide remains in the atmosphere. T/F
True
The Two factors that affect a population are
Population Structure, Age Structure
Pollution helps soil and water quality and is great for humans and animals. T/F
False
Paving the land prevents water from getting to soil and causes it to run into streams and rivers. This can lead to:
flooding
Carrying capacity is the largest number of individuals of a given species that Earth’s resources can support and maintain for a long period of time. T/F
True
How many people do we believe were on our planet 1000 years ago?
300 Million
When forests disappear biodiversity will likely decrease. T/F
True
Agriculture causes many animals and plants to go extinct. T/F
True
Deforestation is caused by:
Humans cutting down trees.
How fast is the human population growing?
1.1% per year
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