Answer:
Spain by "then" will be a depopulated nation dominated by elderly and single people,the country will have lost 5.3million inhabitants, or 11% of the current population, by the middle of the century. If the trends continue, by then the over 65s will make up 34.6% of the population while close to a quarter of a million Spaniards will be over 100yrs old.By that date there will be 1.7million fewer children under 10 than there are now.....
The correct answer is: [C]: " granite " .
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Answer: C
Explanation: Really hope I can help!
soft clay and wet and sandy soil as they are more likely to collapse or corrode over time especially the wet and sandy soil which will erode with rain or water