One of the most impressive monuments of Roman architecture in the Provence (France) is the aqueduct " Pont du Gard" nearly Remoulins, 23 km from Nîmes.
The Pont Du Gard is 275 m long and 50 m high. Originally is the aqueduct, which date before the Christian calendar, supposed to be 50 km long. The aqueduct transported water from Uzès to Nîmes.

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The highest level:

1. roof

2. canal

3. dome

4. septum

The middle level

5.vaulted arch

6. support for the construction of the arch.

7. ornamental corolla.

8. protrusion.

9.passage.

The first level

10. rib.

11. breakwater

12. level of the river Gardon.

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Which parts of the aqueduct are on the picture?

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The highest level:

- height: 7,40 m

- 35 arches, each one are 4,80 m great.

- length: 275 m

- breath: 3,06 m

The middle level:

- height: 19,50 m

- 11 different arches: from 15,50 m to 19,50 m

- length: 242,50 m

- breath: 4,56 m

The first level:

- height: 21,90 m

- length: 142,50 m

- breath: 6,30 m

Resume:

What is the correct heihgt of the aqueduct?

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What is the difference between the length of the highest level and the first level?

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