Aquatic Zones and Noise Barriers

Flashcards covering concepts related to noise barriers and aquatic zones.

Noise Barriers

Devices installed along highways to reduce road noise.

40% Reduction

A decrease in sound level, calculated as 70 dB × (1 - 0.4) = 42 dB.

Littoral Zone

The area closest to the shore with shallow waters where sunlight can reach the bottom.

Neritic Zone

The zone extending from the edge of the littoral zone to the edge of the continental shelf, supporting a wide variety of marine life.

Photic Zone

The depth of water that sunlight can penetrate, encompassing parts of the littoral, neritic zones, and extends into the open ocean.

Open Ocean

The deepest part of the ocean, farthest from the shore, covering vast waters beyond the continental shelf.

Ambient Sound Levels

The background noise level present in an environment.