In Class Review for Final

Sustainability is defined as…

• 1) Consuming at a rate to satisfy the current generation.

• 2) Rapidly increasing resource consumption over time.

• 3) Maintaining a rate of resource consumption that will allow the population to survive indefinitely.

• 4) Not consuming any resources at all.

The Gulf of Mexico dead zone is characterized by extremely low levels of ______ in the water.

• carbon dioxide

• dissolved salts

• oxygen

• nitrogen

What is the term used for the largest population that an environment can support at any given time?

• carrying capacity

• full level

• organism scope

• biotic factor

The effects of water pollution on ecosystems

• can be demonstrated by natural eutrophication

• are always immediate and highly lethal

• can magnify over time within food chains

• result mostly from point-source pollution sources

What impact does deforestation have on the carbon cycle?

• increase the amount of CO₂ in the atmosphere

• decrease the amount of CO₂ in the atmosphere

• increase the amount of photosynthesis

• deforestation has no impact on the carbon cycle

When carbon dioxide is absorbed by seawater, chemical reactions occur that reduce seawater pH, carbonate ion concentration, and saturation states of biologically important calcium carbonate minerals.

• Coral bleaching

• ocean acidification

• oceanography

• ocean aging

Which of the following soil conservation methods involves changing a steep hill into smaller, flatter fields?

• retaining walls

• terracing

• coir logs

• native grasses

Which of the following is not considered a factor of erosion?

• wind

• rain/running water/waves

• gravity

• extreme heat

Which method of harvesting trees is the cheapest way?

• Clear cutting
• Seed-Tree
• Shelterwood
• Selection System

which method of harvesting trees, leaves a few trees to provide shade for the new seedlings

• Clear cutting

• Seed-Tree

• Shelterwood

• Selection System