Want this question answered?
the height of land above or below the level of the ocean or sea level
The Netherlands.
It is not known which country has about 40 percent of it's land situated below sea level. Sea level refers to the average level of the surface of the Earth's ocean from which elevation can be measured.
polders
There are many places world-wide that have land that is below sea level. I personally know of only two at the moment. The Netherlands (formerly called Holland) Southern Louisiana
This type of map is called a bathymetric map. It measures the different levels below the sea level. It is like a topographic map but below sea level.
if the land surrounding the sea is below sea level
If you are talking about dry land that is below sea level, then these are a few examples... The Netherlands (formerly called Holland) Southern Louisiana If you are talking about seas or oceans, then it's just about all if not all of them. Sea level is basically the top of the water, like where the water level meets the shore. Anything below that is below sea level. If it is a lake or a pond, then it may vary. Because the level of the land may also be above or below sea level depending on the location.
No.
spring
Most of the continent is above sea level. However, under the polar ice sheet there is land that is below sea level.
The elevation. This varies depending on where the land is. Some land is below sea level, some is way above.