### clean sport | sailing | tack:

Trapping
* Some trapping is done during winter months for fox, wolf, etc., while seals are hunted year-round.
* cash income and also used for clothing.
* common method of rat killing
  - utilized by sportsmen and landowners
* highly sophisticated skill requiring a high level of training.
* is also an important means of income.
* is an effective control method for controlling house mice
  - way to eliminate voles in small areas
  - essential tool for keeping wildlife populations stable
  - important part of the culture and economy of the residents of southwest Alaska
* is most effective when gophers are pushing up new mounds, generally in spring and fall
  - pushing up new mounds, usually in spring and fall
  - rooted in the lives and traditional cultures of Alaska's people
  - the best way to remove rabbits in cities, parks, and suburban areas
* is the most efficient and cost-effective method in managing mole populations
  - selective, humane approach to regulating furbearing wildlife populations
* is the most successful and practical method of controlling moles
  - method of getting rid of moles
  - only feasible method for controlling overly abundant populations of predators
  - other most common means of collecting animals for the fur industry
  - safest and easiest method for controlling rats
  - use of devices such as snares, pits, and deadfalls to capture or kill an animal
  - used to control and eliminate any feral American mink
  - wet ink printed on top of wet ink in process-color printing
* key to integrated pest management in tree fruits.
* plays an important role as a tool to control nuisance and predatory wildlife.
* produces furs which are a beautiful natural product and which are renewable resources.
* provides northern people with food, clothing and income
  - raw materials for the fur industry
* refers to the amount of overlap between colors.
* traditional art that is under a great deal of public scrutiny.
* very versatile way of capturing animals.
* wildlife management tool used by biologists to protect endangered species.

### clean sport | sailing | tack | trapping:

Live trapping
* can be an effective way to remove cottontail rabbits.
* is also an effective way to capture armadillos
  - an effective method of reducing woodchuck numbers in a small area
* poor solution at any time of year, moreso in winter.

Optical trapping
* is accomplished by photons that go through, rather than bounce off, a target.
* method for non-mechanical manipulation of small particles.

### clean water:

Clear water
* allow sunlight in, promoting algae growth and attracting prey.
* allows fish to easily be observed
  - light to reach the symbiotic algae living within the coral polyp's tissue
* are best for wetlands because they allow light to reach underwater marsh plants.
* causes a desire to scuba dives.
* has low turbidity.
* is clean water
  - just the opposite since bass tend to rely primarily on their sight to acquire food
  - usually much harder to treat than muddy water
* lets light penetrate more deeply into the lake than does murky water.
* looks blue because it reflects the sky.
* reflects little radiation, so it looks black.