Essays Tagged: "Sea ice"

Hotbed of Volcanic Activity Found Beneath Arctic Ocean.

cience.For decades scientists longingly eyed the Gakkel Ridge. But since it lies beneath a cover of sea ice, access to it has been limited. Apart from a single submarine study, much of what was known ... to it has been limited. Apart from a single submarine study, much of what was known about the undersea region's geology was extrapolated from studies of other, more accessible, ocean ridges.Then in A ...

(4 pages) 45 0 5.0 Jul/2003

Subjects: Science Essays > Earth Sciences > Geography

This essay refers to how polar bears live, and where they live. It also refers to many charecteristics of both male and female polar bears.

om land or ice.Polar Bears are intelligent hunters also. They make holes in ice packs, and wait for seals to pop up. They then lurk behind their victim and feast on them. Polar bears diets consists of ... p up. They then lurk behind their victim and feast on them. Polar bears diets consists of meat, and seal blubber. Humans are the only main predator of polar bears, but sometimes a killer whale will fi ...

(1 pages) 37 1 4.5 Feb/2004

Subjects: Science Essays > Zoology

Coastal Proccesses

nd gradually wear it away.Corrosion or Solution - Very small particles of rock are dissolved by the sea and carried away in solution.Hydraulic Action - When a wave pounds rocks air is trapped in crack ... ed along the coast by the waves and tides.Erosion - Wearing away of the land by various agents e.g. sea, ice and wind.Deposition - Material carried along the coast is dumped. This may form beaches.Lon ...

(1 pages) 41 2 3.6 Mar/2004

Subjects: Science Essays > Earth Sciences > Geography

How Polar Bears are adapted to their Environment

her animals and people do, and it would not be recognised by an inferred scanner, such as used when searching earthquakes and other devastated sites for survivors. The Polar bear would not be detected ... ppear to have traded off speed for their extremely massive forelegs which they use to break through seal dens or flip a large seal out of the water. They are able to attain speeds of 40 kilometres per ...

(3 pages) 28 0 0.0 Nov/2004

Subjects: Science Essays

Antarctic Animals: The Penguins

The Emperor penguin is the biggest of all the penguins. They are found in the Weddell Sea and Dronning Maud Land, Enderby, Princess Elizabeth Lands, and the Ross Sea, Emperors bree on th ... minutes or more until needing for air. Their diet are small fish and squid, krill, and plankton. At sea, the key predators of King penguins are the Leopard seals and Killer whales and skuas and other ... ften help them at hiding form their predators.They eat mostly upon krill, and occasionally squid.At sea, Rockhoppers are vulnerable to blue sharks, leopard seals and other seals. On land, eggs and you ...

(3 pages) 16 0 3.8 May/2007

Subjects: Science Essays > Zoology

Effects of Global Warming

elting. In fact, in 2005, the ice cap covering the Arctic Ocean shrank to its smallest size since researchers began keeping records a century ago. Also, in the past five years, scientists reported tha ... in the past five years, scientists reported that many Greenland glaciers are sliding faster to the sea and melting at their edges. This causes the sea levels to rise at uncontrollable rates and threa ...

(4 pages) 41 0 0.0 Oct/2007

Subjects: Science Essays > Environmental Science

How does a climate change influence water resources?

ld's physical environment. Extreme weather events are becoming more frequent. Glaciers are melting. Sea ice and snow cover are declining. Animals and plants are responding to earlier seasons. Global w ... ng. Animals and plants are responding to earlier seasons. Global warming has already driven up mean sea levels by 110-20 centimetres during the last 100 years, and this is forecast to rise by up to an ...

(12 pages) 52 0 3.0 Nov/2008

Subjects: Science Essays > Environmental Science

Global Warming

"386,000 square miles of sea ice an area bigger than Texas and Arizona combined that have been lost in the past 30 years beca ... now cover in the Northern Hemisphere and floating ice in the Arctic Ocean have decreased. Globally, sea level has risen 4-8 inches over the past century. Worldwide precipitation over land has increase ... Kilimanjaro, are disappearing from mountaintops around the globe. Coral reefs are dying off as the seas get too warm for comfort. Drought is the norm in parts of Asia and Africa. El Nino events, whic ...

(12 pages) 46 0 4.0 Nov/2009

Subjects: Science Essays > Earth Sciences

The Effects of Global Climate Change on Polar Bears

est terrestrial carnivore known to man, and is known by the scientific name Ursus maritimus or "the sea bear". It is a species that is completely dependent on sea ice for life (Morrison, 2004). Over t ... rs have adapted themselves to the harsh ways of the Arctic and these bears have become dependant on sea ice for their hunting and foraging for food. However, the recent changes in global climate and h ...

(10 pages) 37 0 0.0 Mar/2010

Subjects: Science Essays > Biology

Global Warming

been experiencing an increase in average temperature for years with the resulting disappearance of sea ice.In the Canadian Arctic, global warming has caused a dramatic decrease in the level of ice wh ... se the ice refreezing in winter stopped covering for the summer melting. There is only a quarter of sea ice remained and the total volume of ice is a fifth of third years ago. Unfortunately, scientist ...

(3 pages) 2 0 0.0 Jun/2014

Subjects: Science Essays > Environmental Science