0.4 fill in the blanks
1. Gold and Silver are........
minerals.
2. Deep bores dug to reach mineral deposits are called......... .
3. petroleum is drilled from........ .
4. The percentage of fresh water in earth is......... .
5. The process reponsible for soil formation is called..... .
6. The grainy layer on land is called...... .
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Answer:
no 1 _crystalline
no 3_ crude oil
no 4_ 3%
no 5 _ weathring
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