Biology Chapter 6 Study Guide
Why is it not practical to solve threats to biodiversity with simply putting a stop to development?
Because new problems will always occur
What are some human activities that have affected the biosphere?
Burning fossil fuels and pollution
What is the difference between extinction and endangered species?
Extinct- completely gone Endangered- very few left
Any harmful material that can enter the biosphere through land, sea, air, or water is a _____________________.
pollutant
What is "green energy"
renewables
What is soil erosion?
soil that deteriorates
What are some possible effects from global warming?
temperature rising or melting ice caps
What is biodiversity?
the total number of a species in the biosphere
Why are the forests called the "Lungs of the Earth"
they produce oxygen for us to breathe
Give one example of an invasive species
mute swan
What are some results from the Industrial Revolution?
- Added factores - Better education - Better quality of life - Pollutions
List 3 changes in agricultural practices that have made them more and more enviromentally friendly and sustainable.
- Chemicals - Monoculture - Machines
Describe 3 types of biodiversity
- Species - Genetic - Ecosystem
Give 3 examples of a non-renewable resource
- coal - oil - natural gas
Give 3 examples of renewable resource
- fresh water - wind -sun/solar
What is the difference between non-renewable and renewable resource?
Non-renewable: you can't use or get again Renewable: you can get again
How has human activity reduced biodiversity?
Altering habitats (building highways)
Explain the term "Tragedy of the Commons
An essay on society to think and not overuse
The raising of aquatic animals for human consumption is __________________________.
Aquaculture
What is smog?
Chemicals that create a brown-grey haze
Name one way our freshwater resources are threatened
Over-fishing is causing to decrease the amount of fish
What was the Greeen Revolution?
Highly productive crop
What happens in biological magnification?
Increases harmful substance in food chain/web
How is a lake of nothing small, young fish an indicator of over-fishing?
No adults to produce
Give one example of something humans do that increases the rate of soil erosion.
Plowing
What is the function of the ozone layer
Protect earth from the UV rays
How does burning fossil fuels affect air quality?
Releases pollutants
What is acid rain?
Sulfer and Nitrogen mixed
_________________ ____________________ is a way of using natural resources without depleting them.
Sustainable Development
What do some scientists think is causing or expanding the hole in the ozone layer?
The use of aerosol cans (CFC's)
Why are invasive species a problem?
They overpopulate and crowd out the animals that are native to that area
Why is acid rain a problem?
acid rain damages trees, plants, buildings, the atmosphere and animals
Why do some scientists think that global warming is man-made?
blocks heat in
What causes smog?
chemicals
The conservation of a previously soil-rich, productive area into a desert is called __________________________.
desertification
What can cause desertification to happen?
drought&overgrazing
Agriculture is also known of the practice of ______________________
farming
What is one benefit of agriculture?
food
The increase in the average temperature of the biosphere is known as ______________________ __________________________.
global warming