I would say the main headings and key concepts in a reading assignment would help one to grasp what the topic is basically about ie paying attention to these two things would be an essential part of a study guide so that the main meaning of the writing could be grasped.
<span>The tone of the letter is too informal and lacks details needed for a good resolution.
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1.the heads on Easter island and how they move
2. how the pyramids were built
3. how the temperature of the earth is changing
1. Is B because they not talking about a specific gorilla