Answer:
Physical properties that contribute to the change in sea level rising are -
- Eustatic sea-level changes
- Isostatic sea-level changes
- Tectonic sea-level changes
Explanation: All these three physical properties contribute to sea level rising.
- Eustatic sea-level changes - Global changes in sea levels are either related to changes in the volume of glacial ice on land or to changes in the shape of the sea floor caused by plate tectonic processes. Changes in the rate of mid-ocean spread, for example, will change the shape of the sea floor near the ridges, and this will affect the level of the sea. Due to glacial melting, there has been about 125 m of eustatic sea-level increase over the past 20,000 years. During the major melting process of the North American and Eurasian Ice Sheets, much of this occurred between 15,000 and 7,500 years ago.
- Isostatic sea-level changes - Local changes caused by crust subsidence or uplift are either due to changes in the amount of ice on the ground, or to mountain growth or erosion. At the end of the last glaciation, almost all of Canada and portions of the northern United States were covered in dense ice sheets. An isostatic rebound of the continental crust has occurred in several regions following the melting of this ice. This ranges in the central part of the Laurentide Ice Sheet (aroo) from several hundred metres of rebound.
- Tectonic sea-level changes - The subduction of the Juan de Fuca Plate underneath British Columbia is causing tectonic uplift (about 1 mm / year) along the western edge of Vancouver Island, but most of this uplift is likely to be reversed when the next major earthquake reaches the subduction zone.
Hence, these three physical properties contribute to the change in sea level rising.