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3 years ago

ITS A TIME LIMIT PLZ HURRY

Biology

1 answer:

astraxan [27]3 years ago

5 0

Answer:

<u>Answer D. Scratching it with other materials</u>

Explanation:

Let's start eliminating some answers

Answer A; If you hit an object with a hammer, you will just figure out if that object can be broken with a certain amount of force. In most cases, this will not be helpful.

Answer B; When putting a material in an acid, many things could happen. This things that happen are called chemical reactions. Not every material will have a chemical reaction so this step could be useless.

Answer C; Chipping a piece off of a material will not grant you much information. Yes if may be easier to experiment will a smaller piece but the action by it's self is not useful.

Answer D; Scratching a material will another material can be very helpful. If you have two materials, labeled A and B, you can find out the Mohs hardness scale. If A is damaged by B, the hardness of A is less than B and vise versa. This can be very helpful when identifying materials.

So answer D makes the most sense

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