They don't actually "sink" , the only way for continets to "sink" is if the worlds ice caps melt little by little, some continets get flooded
The above answerer can't hide his ignorance. Continents can, in deed, sink. Consider the case of the continent of Zealandia. Also known as Tasmantis or the New Zealand continent. It broke away from Antarctica 80 to 130 million years ago. Then it was finally submerged when it broke away from Australia 60 to 85 million years ago. It is considered to be completely submerged as of 23 million years ago. 93% of remains beneath the Pacific Ocean.
continents
The continents are moving when they spread apart
Continents
Continents, Islands
Antarctica is the coldest of Earth's continents.
The asthenosphere is just below the lithosphere and is where plate tectonic movement and isostatic adjustments occur. The continents float on this malleable layer that is semi-solid.
But mountain ranges on continents do sink into the soft asthenosphere! They sink more than their continent but they still float on the heavier material beneath. A large tall cruse ship (mountain) will sit much deeper in the water than a flat barge (a continent). Still, the large cruse ship will float in the more dense material underneath. Just as the water has a greater density than the large cruise ship, the asthenosphere still has a greater density than the mountain range.
The future tense of "sink" is "will sink".
continents
continents
This is ROCK so it will SINK
As in 'sink a boat' or 'the kitchen sink'?
A Belfast sink is a deep, rectangular, ceramic sink, also known as an elephant sink.
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A hammer will sink
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There are 7 continents: Africa, Antarctica, Asia, Europe, North America, Australia (Oceania), and South America.