Usually but it depends which mountain
Any mountain much higher than that would crush, due to its own weight.
because more stress would be exerted on the bottom of the mountain hence leading it to crush
Is 1.0 half or more than a kilometer
A mountain is taller than a hill. Mountains are higher in elevation and have steeper slopes compared to hills.
Yes - 1 kilometer is 1,000 meters.
The best measure to use is the meter. A kilometer would be well beyond the height of a desk or house.
Although there is no universal size limit, oceanographers call such a submerged mountain a "seamount." Many features will have names similar to non-nautical mountains, such as massif and ridge.
Meters are used. So far, even the tallest building is less than a kilometer high.
Mile
A mountain is taller than a hill. A hill must attain a certain height to be considered a mountain. This height requirement varies from culture to culture. There is no standardized height or a world-wide definition for the word "mountain".
No because 1,000 meters = 1 kilometer
Olympus Mons is substantially taller than Mt. Everest by any standard of measurement (height above datum, height above surrounding plains, height above lowest surface point).