WorksheetsEvaluation - Delta of the Danube
Total questions: 11
Worksheet time: 6mins
In the future, the Delta will evolve into a relief form of type:
abyssal plain
continental platform
plain
shelf
What is the maximum altitude of the Danube Delta?
15 meters
12 meters on Grindul Letea
20 meters
8 meters
Which arm of the Danube transports the largest volume of water?
Sulina Arm
Saint George Arm
Chilia Arm
All three arms transport equal volumes
How were the fluvio-maritime ridges formed?
By the accumulation of sediments along the main arms
By the erosion of old continental surfaces
Transversely in the direction of the river
By the exclusive action of marine currents
What characteristic of the Black Sea facilitated the formation of the delta?
Strong marine currents
Weak tide of 10−14 cm
Great depth
High temperature
What is the approximate amount of alluvium transported annually by the Danube?
35 million tons
45 million tons
57 million tons
70 million tons
Which arm of the Danube is most suitable for maritime navigation?
Chilia Arm
Saint George Arm
Sulina Arm, with a draft over 7 meters
None of the arms is navigable
What is an island in the Danube Delta?
A lake formed by the overflow of the Danube
A floodable land area located between the main arms
A secondary arm of the river
A sand dune
How is a lake basin formed in the delta?
By the action of marine waves
By the accumulation of water following the overflow of the Danube
By artificial digging
By the action of the wind
What is the approximate period of formation of the Danube Delta?
The last 5,000 years
The last 10,000 years
The last 20,000 years
The last 50,000 years
According to its genesis, the Chilia ridge is:
Fluvial ridge
Fluvio-maritime ridge
Continental ridge
Maritime ridge
