we're not under water... Not yet anyway :)
Most of the west part of Netherlands is below sealevel, so if the sealevel would rise a great deal most of the Netherlands would be submerged. But that's why we have dikes ans dunes. And the Dutch are one of the most spcialised people in the world when it comes to water management, so we'll probably be okay
Even though half of the Netherlands is less than 3 ft (1 meter) above sea level, and one third of the country is even below sea level, the risk of flooding in the Netherlands is very small. To keep the sea at bay they have dunes and dikes, which are very well maintained and monitored, and the Delta Works (see related link) and the Afsluitdijk (see related link).
The only floodings they had in the past 20 years were caused by unusually high water levels in the rivers (Meuse, Rhine) in parts of the country that are well above sea level. Such high water levels are an extremely rare occurrance though, and they are easy to predict so countermeasures can be taken is necessary. All in all, the chance of floodings is very small.
The Netherlands are prone to flooding because the area is flat, there aren't any major hills. Nether means 'under'.
Because it's thirsty
All must be. If there is a body of water, there must be a risk of flooding if the circumstances are right. However, Netherlands must be at most risk, because a good proportion of the country is below sea-level, and is protected by dykes. If anything should cause a dyke to fail, the results would be catastrophic flooding.
Much of the Netherlands is below sea level and the sea is kept out with a great system of dikes. If the sea level rises, then there will be massive flooding. Venice is concerned about the effects of global warming because of the risk of the rise in sea level, it could put the city under 20cm of water.
Low-laying areas close to water are at risk of flooding
disease
depends on the state and place, earthquake risk, fire risk, flooding risk, etc, nywhere between 300$ and 600$ per year
It isn't.
building on floodplains
Humans farm and that changes the land. They also build cities and that affects how water is absorbed into the soil. So yes, humans increase the risk of flooding.
Netherlands means "low lands" and by rising the sea levels there's a chance of them flooding.
if it rains its more likely to get flooded
At risk of flooding which must be taken care of
It can be- most rivers are subject to flooding at times.