Evaluation - Delta of the Danube

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