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Card 6

Front

what do gryones do?

Back

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Card 7

Front

Are gryones hard or soft?

Back

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Card 8

Front

What is one advantage of gryones?

Back

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Card 9

Front

What are 2 disadvantages of gryones?

Back

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Card 10

Front

What are gabions?

Back

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Card 11

Front

What do gabions act as?

Back

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Card 12

Front

What is one advantage of gabions?

Back

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Card 13

Front

What is one disadvantage of gabions?

Back

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Card 14

Front

Are gabions a type of hard or soft engineering?

Back

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Card 15

Front

What is rock armour?

Back

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