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C. Directions: Perform the activity given and answer the questions that follows.
1 How do light waves travel? Get three index cards. Punch a hole near the top.
going through all three cards at once to make sure the holes line up later. Tape the cards to
blocks or other small objects to make them stand upright. Set the three cards up in a row
and shine a flashlight through them.
To
What do you notice in the light when the hole in the cardboard is aligned?

C Directions Perform the activity given and answer the questions that follows 1 How do light waves travel Get three index cards Punch a hole near the top going class=

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If you help me with my question I will help you with yours I promise

Answer all parts of the question that follows.

a) Identify ONE way in which the development of new technologies in the twentieth century changed the global economy.

b) Explain ONE similarity in how the development of new medical innovations and agricultural technologies in the twentieth century affected the environment.

c) Explain ONE major change in global culture in the late twentieth century.

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