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Dafna1 [17]
4 years ago
6

Question 19 of 25

Biology
2 answers:
krok68 [10]4 years ago
5 0
A. Development of Transportation:)
Varvara68 [4.7K]4 years ago
3 0
B. Purifying dirty water ! - because if the drought dried up the clean drinking water sources, you need technology to find a way to clean the dirty water and purify it
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