Ecosystems

Where does most air pollution come from?

• Human activities

• Wildfires

• Volcanic eruptions

• Allergens

The number one reason for deforestation?

• Logging

• Agriculture

• Urban development

• To increase biodiversity

Deforestation leads to a decrease in atmospheric carbon dioxide.

• True

• False

Breaking up large areas of habitat into smaller pieces is called...

• Destruction

• Conservation

• Logging

• Fragmentation

A species that is not supposed to be in an ecosystem (non-native) and has no competition

• invasive species

• fossil fuels

• direct harvesting

• indicator species

A good example of the fragmentation of habitat would be _____.

• Cutting down a forest to build a housing development.

• Draining a swamp to develop the land.

• Building a road through the woods.

• Polluting the James River

Reducing the quality of habitat through pollution or invasive species is called ___________.

• degradation

• destruction

• fragmentation

• mitigation

Fishing tuna at a rate of more than they can replace themselves is known as?

• Habitat destruction

• unsustainable

• trophic cascade

• overharvesting

Which of the following is NOT a cause for the current decline in the biodiversity of our ecosystem?

• overexploitation of resources

• increasing human populations

• pollution of water sources

• regenerating forests

A possible way to prevent species from becoming endangered is?

• increased use of fossil fuels

• more habitat converted to farms

• designating more areas as wildlife preserves

• increased urban expansion