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Kuvat 8

Vaihtoehtoiset kirjoitusmuodot

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Määritelmät

Substantiivi

  1. An area with no life.
  2. (ecology) An area of the ocean where oxygen levels are too low to support life, especially as a result of pollution.
  3. (telecommunications) A region where mobile phones do not operate because there is no base station or repeater nearby.
  4. (sports, gridiron football) The part of the field where a player is on their opponent's side of the field but kicking a field goal would probably be unsuccessful and punting the ball would not dramatically change field position.
  5. (military, historical) An area near a fortification that is relatively sheltered from defending fire because direct fire from other parts of the walls cannot be directed around a curved wall.
  6. (video games) A region within the player's viewpoint that is less sensitive to small movements, aiding accurate firing of weapons etc.

Esimerkit

  • Planet Earth Research this year discovered that humans have created at least 50 ‘dead zones’ (zones where there is no oxygen) in the sea through pollution, and have extinguished other species at 1,000 times the natural rate in evolution.
  • It is only really in the past decade that science has begun to tell us that the man-made changes now occurring in the oceans – from acidification to overfishing to the growth of dead zones – represent some of the greatest threats to life on Earth.

Taivutusmuodot

Monikkodead zones

(ecology) An area of the ocean where oxygen levels are too low to support life, especially as a result of pollution.

Red circles show the location and size of many dead zones (in 2008). Black dots show dead zones of unknown size. The size and number of marine dead zones—areas where the deep water is so low in dissolved oxygen that sea creatures cannot survive (except for some specialized bacteria)—have grown in the past half-century.

(sports, gridiron football) The part of the field where a player is on their opponent's side of the field but kicking a field goal would probably be unsuccessful and punting the ball would not dramatically change field position.

The Colorado Mesa Mavericks attempt a 54-yard field goal from the 37-yard line against the Texas A&M-Commerce Lions in 2016. A field goal from that range has a low rate of success but was chosen over punting or going for a fourth down conversion.

(ecology) An area of the ocean where oxygen levels are too low to support life, especially as a result of pollution.

Dead zones are often caused by the decay of algae during algal blooms, like this one off the coast of La Jolla, San Diego, California.