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true or false 3. Natural rock formations are caused by human activities.
4. Oxidation happens when certain elements react with hydrogen.
5. Chemical weathering can cause the minerals to decompose or form new minerals.​


Sagot :

Answer:

3.let's say its dangerous but it's beutiful to look with our eyes.

4.oxidation is loss of hydrogen. reduction is again of hydrogen.

5.chemical wheathering is caused by rain water reacting with the mineral grains in rocks to form new minerals ( clay) and solutable salts.