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Almost all. The word-definition answer would be the ratio of land classed as continents to that classed as islands, but geologically, most islands are on their nearest continent anyway. (Look at a map that shows the Continental Shelves).
The few exceptions amount to a very tiny fraction of the total area, and these are surface-breaching volcanic sea-mounts rising from mid-ocean ridges and intra-plate vulcanism, like Hawaii and The Canaries.
What else can I help you with?
Why some rock layers but not all are found in outcrops?
Not all rock layers are found in outcrops due to factors such as erosion, geological processes, and structural formations. Erosion can remove overlying layers, exposing only certain strata, while tectonic activity can fold or fault rocks, altering their visibility. Additionally, some layers may be buried beneath younger sediments or may not have formed in the same area due to varying environmental conditions. As a result, only select layers are accessible at the surface, forming visible outcrops.
What evidence supported continental drift?
the same rock types on the edges of different continents and the reverse magnetic polarity show seafloor spreading which shows that the continents are moving. the Coastlines of South Africa and south ameria seem to match and fit together like a jigsaw and so do many other countries which gives the impression that all the continents were onced joined together as a massive continent called Pangaea
How do distinctive rock formations support the theory of continental drift?
The shapes of continents appearing on the map clearly show similar shapes and how the continents might fit together.
What are the evidences of the movents of the continents?
The evidence that the continents are moving today is actually just a theory, but is accepted to be true. This theory is known as Continental Drift and is described as the continents belonging to tectonic plates, which are basically floating on the Earth's surface. Evidence to prove such is that the continents all fit together like a jigsaw puzzle and related or the same plant or animal species are located on separated continents, suggesting that they were all once connected to allow the animals to roam and the plants to spread. If they have moved in the past, they must still be moving today, and there are projected paths the continents are taking.
How many continents are surrounded by water?
All the continents have at least one side touching water. They all touch at least one ocean and they all have rivers.
What continents can you find clay in?
In all continents, even Antartica. It is one of the most common rock types.
Why some rock layers but not all are found in outcrops?
Not all rock layers are found in outcrops due to factors such as erosion, geological processes, and structural formations. Erosion can remove overlying layers, exposing only certain strata, while tectonic activity can fold or fault rocks, altering their visibility. Additionally, some layers may be buried beneath younger sediments or may not have formed in the same area due to varying environmental conditions. As a result, only select layers are accessible at the surface, forming visible outcrops.
What percentage of the population has been to all seven continents?
More then 10 million.
Which continents are the rocks layer found?
Rock layers can be found on all continents. The type and composition of rock layers will vary depending on the geological history and tectonic activity of each continent. For example, ancient rock layers are prominent in continents like North America, Europe, Africa, and Australia.
Why is there rock under Antarctica?
Antarctica is a continent -- 98% of which is covered by an ice sheet. Continents are composed of 'rock'. As to why -- this is a mystery best answered the same way it wold be answered for all continents on earth.
How does Australia's landscape differ from worlds other continents?
It has the largest percentage of barren, non-arable land of all the continents, excepting only Antartica.
Which continent has the lowest percentage of urban population?
Africa has the lowest percentage of urban population among all continents, with around 40% of its population residing in urban areas.
What continents do hummingbirds live in?
The are all over in all continents but Antarctica
How would continental drift explain a rock sequence being found on both South America and Africa?
The Pangaea theory says that long ago, all of the continents were one. Now, they clearly are not. However, archaeologists and scientists of the like are finding that certain places in continents that are oceans apart have similar rock patterns, and, if you look close enough, each continent fits into each other. So essentially, similar rock patterns on different continents is likely a result of continental drift because according to "Pangaea", all of the continents used to be one.
What continent in the eastern hemisphere has greatest percent of christians?
Africa has the highest percentage of Christians among all continents in the Eastern Hemisphere.
What rock type is formed due to lighter and less dense maga rises and cools as it reaches the earth's surface?
Granite. That's the type of rock that makes the basis for all the continents.
What was the first band to play on all 7 continents?
Rock band Metallica became the first band to play on all seven continents after a concert at the Carlini Station in Antarctica in December 2013. Because the concert came at the end of a worldwide tour, Metallica also became the first band to play on all seven continents in a single calendar year.
