Ecosystem Finals

• is water that contains only

  minimal quantities of dissolved salts, thus

  distinguishing it from seawater or

  brackish water.

  Freshwater
• • Refers to any of the large bodies of water

  into which the world's ocean is

  conventionally divided.

  Oceans
• A body of salt water that covers around

  _______ of Earth’s surface.

  two-third
• Home to _____ fish species.

  1,000
• Depth ranges from __ kilometers at the

  the greatest depth of the oceans to just a few

  inches near the coastline.

  11
• Bodies of water are usually found

  where rivers meet the sea.

  Estuarine waters
• Home to unique plants and

  animals that have adapted to

  brackish water

  Estuarine water
• a mixture of

  freshwater draining from the

  land and salty seawater.

  brackish water
• • The oceans, along with

  the atmosphere, keep Earth’s surface

  temperatures fairly constant worldwide.

  Moderate climates
• • From fishing to boating to

  kayaking and whale watching, the ocean

  provides us with many unique activities.

  Recreation
• coastal resources provide

  much of what supports daily life such as food,

  livelihood, economic development, clean

  water, and even the air we breathe.

  Sustainability
• Oceans are at risk from _____ if not

  managed as a renewable resource.

  overfishing
• Coastlines are close to land, and so are

  threatened by _____ ______

  and ______from sewage, agriculture,

  and dumping rubbish.

  industrial developments, pollution
• Mangrove swamps and coral reefs face

  ______ because of human activities.

  destruction
• Coral reefs are being destroyed by global

  warming through ______.

  bleaching