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Author Question: How can tree rings provide information about past climates? A) Thickness and spacing of tree ... (Read 273 times)

humphriesbr@me.com

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on: Jul 15, 2018
How can tree rings provide information about past climates?
 
  A) Thickness and spacing of tree rings reflect environmental conditions
  B) Tree rings turn colors depending on the climate
  C) Tree rings trap gas bubbles that can be used to interpret atmospheric conditions
  D) Tree rings can measure past CO2 concentrations

Question 2

Explain why waves will begin to curl and fall over as they approach shore.
 
  What will be an ideal response?


ebe

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Reply #1 on: Jul 15, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: As the wave approaches shore, the base of the moving water will feel bottom, which means it will scrape against the bottom of the basin. This friction will cause the moving water at the bottom of the wave to slow down. However, the water at the top of the wave has not slowed and will move farther forward than the base, resulting in the curling wave.


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