You think you might have mixed your salt (NaCl) up with naphthalene (C10H8). You know that NaCl is safe to eat, but C10H8 is very dangerous. You need to find out which one is which before you put it on your lunch. Design an investigation in the space below that will help you determine which substance is NaCl and which one is C10H8. How will you determine which substance is NaCl and which one is C10H8?

Explain why you think this will work.​

answer: the direction of the wind is expressed as the direction from which the wind is blowing. for example, easterly winds blow from east to west, while westerly winds blow from west to east.

explanation:

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.

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