Science, asked by sanjanadevi87129, 1 month ago

Nina's metal watch got soaked while she was washing her hands. After a few days,she noticed something brown on her watch. what happened to her watch?Is it a physical or a chemical change??How can she prevent her watch from turning brown?

Answers

Answered by madhurasule8

0

Answer:

it was algae it was a chemical reaction.she can prevent it by not letting it go in water

Answered by raghava990

1

brown is rust it is an chemical change.

Explanation:

to prevent it she can paint it or she can apply oil.

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