Chapter 6- Humans In The Biosphere Flashcards
What are the human activities that affect the biosphere
Hunting Gathering Agriculture Industry Urban development
Agriculture allowed for
(Farming) humans to increase and animal husbandry which is easing farm animals which made food rapidly increase and provided a dependable food source
Steel is made of a
Iron with added carbon
How did the steel plow change the human race
It allowed for large scale agricultural production
The green revolution
Food became very easily available. It is responsible for the rapid growth of the human population
Monoculture
When large Fields are planted with the same single variety of plants year after year. This isn’t good because if I passed or disease comes all of our food will be gone. He must have diverse city. It happens when farmers plant what is most popular and profitable year after year
Mono
One
The industrial revolution allowed for
The electric motor which led to elevators which allowed for big buildings which created cities
Wealth from agriculture led to the makin of cities
Renewable resources can
Regenerate if they are alive or can be replenished by bio geochemical cycles if they are nonliving
Nonrenewable resources
Cannot be replenished by natural processes
What is the tragedy of the commons
When a resource is so readily available that it is not regulated or or is impossible to regulate. Therefore it gets used up
What is sustainable development
A way of using natural resources without depleting them and of providing for human needs without causing long term environmental harm
What percent of the United States power is nuclear
22%
What can affect the quality and supply of renewable resources such as land, forests, fisheries, air, and freshwater
Anthropogenic activities (humans)
Desertification
When a fertile productive area turns into a desert because of farming, overgrazing, and drought
What is contour plowing
When farmers plow around a hill in a circle so as the water from the rain comes down it does into the grooves and gets absorbed which limits soil erosion.
Deforestation
Clear cutting which is when humans cut down every tree and erosion follows it
What is the lungs of the earth bc it produces oxygen and gets rid of carbon dioxide
Forests
Aquaculture
The raising of aquatic animals for human consumption
ANWR
Arctic natural wildlife refuge
Why do elephants and other large animals have a problem with conservation
They need lots of space and areas of big habitat
What percent of the earths surface is considered wilderness
39
What percent of the wilderness is protected
12
How many trees are cut in the Amazon forest each year
The size of Switzerland
