Question

Define gold??? itz types..​

Answer 1

Answer:

There are three types of gold:

1) Yellow gold is neturally occurring and is the purest form of the metal.

2) White gold is mixed with palladium or nickel to give it a color close to silver or platinum.

3) Rose gold is an alloy including about 25% copper, which gives it a pinkish color.

Explanation:

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Answer 2

Answer:

First, it combines with carbon dioxide in the soil to form a weak acid called carbonic acid. ... Carbonic acid slowly dissolves away minerals in rock, especially the carbonate minerals that make up limestone and marble. The weak acid decomposes the insoluble rock into watersoluble products that move into the groundwater.