The increase in density of water as it gets colder causes it to sink, creating ocean currents. This phenomenon occurs mostly in the polar regions of Earth where the water temperature is significantly colder.
The polar regions, also called the frigid zones or polar zones, of Earth are the regions of the planet that surround its geographical poles (the North and South Poles), lying within the polar circles. These high latitudes are dominated by floating sea ice covering much of the Arctic Ocean in the north, and by the Antarctic ice sheet on the continent of Antarctica and the Southern Ocean in the south.
Polar regions receive less intense solar radiation than the other parts of Earth because the Sun's energy arrives at an oblique angle, spreading over a larger area, being less concentrated, and also travels a longer distance through the Earth's atmosphere.
Know more about polar regions:
https://brainly.com/question/33291553
#SPJ11
