Netting
* allows water to flow through.
* also can safeguard plants from birds and insects.
* also protects against hail
  - tree limbs and fruit spurs from breakage and damage by raccoons
  - reduces wasp and bee nests as well as damage from Japanese beetles
  - works around individual plants
* can be very useful at preventing bird damage to fruit and vegetables
  - provide a physical barrier between the birds and the nest site
  - reduce deer damage to small trees
* comes in various mesh sizes, colors, and materials.
* involves using nets, including active netting with the use of cannon nets and rocket nets.
* is also useful around buildings for covering window or other openings.
* is an excellent way of controlling birds
  - inexpensive way to make the pond cleaning much easier
  - located in backpacks
  - most efficient in short and thin crops and less efficient in tall dense crops
* is one of the most effective methods of excluding woodpeckers
  - methods of protecting the harvest from birds
  - textiles
* is the most effective way to control the birds
  - keep birds out of the planting
  - used to hold bunch-type grasses together when planted as sod
  - weaving
* placed over plants when pests show up can safeguard plants from birds and insects.
* prevents the adult from landing to deposit eggs on the plant.

Neurobiology
* is biology.
* tries to determine how a schizophrenic brain differs from a normal one.
* very diverse field.

Nonfiction
* is about facts.
* is factual information
  - writing about real-life situations
  - prose
* makes up a much larger proportion of boys' reading than of girls reading.
* series of facts and suppositions.

Northern
* generally stick to weed beds, although they can be found at anytime and anywhere.
* usually reach sexual maturity in the third year of life.

Nuclear fallout
* causes cancer, physical abnormalities and often, immediate death.
* is caused by the explosion of a nuclear weapon
  - mobs
  - radioactive dust created when a nuclear weapon detonates

Nervous control
* has a shorter duration than endocrine control.
* is electrical in nature and fast.

Nondestructive testing
* is undoubtedly one of the world's most important professions.
* method of finding defects in an object without harming the object.

Neoprene
* Provides moderate abrasion resistance but good tensile strength and heat resistance.
* also acts as a wind and vapor barrier to reduce convective heat losses.
* contains chlorine.
* has moderate resistance to oils and gasoline
  - one of the highest heat retention or insulating factors of the modern age materials
  - the advantage in rough weather of rebounding after being dumped on
* is also a synthetic rubber
  - best when the water is very cold
  - compatible with some acids and caustics
  - comprised of many small bubbles
  - cool in summer, warm in winter
  - ideal for cold weather and water sports
  - known for being shock-absorbent and waterproof
  - more expensive than natural rubber latex, nitrile or vinyl
  - non-inflammable
  - of two main types
  - oil-resistant
  - pigmented with carbon black which is produced from the burning of oil
  - unreactive to many industrial chemicals such as oil, grease, petrol, other solvents
* is used for making hose and tank linings
  - in petrol industry in the form flexible pipes or hoses
  - to make conveyor belts, car belts, gaskets, etc
  - water resistant and snug on the boat
  - well suited for many acids and caustics
* provides better traction under one's knees and is more durable.
* recommended material for personal protective equipment.
* supports keep joints warm and swelling down.