Sagot :
Answer:
(SD) on the blank before each sentence if it is a supporting detail
(R) if it is a restatement of the topic sentence.
1. When an earthquake struck in 1995, scientists and city planners learned a great deal about the kinds of buildings that can survive an earthquake.
SD a. Buildings that had foundations resting on giant rollers suffered very little damage.
SD b. Buildings that were made only of adobe material simply fell apart when the
earthquake struck.
R c. After the earthquake was over, officials realized why some buildings were destroyed while others suffered hardly any damage.
SD d. Many modern buildings were designed to vibrate when earthquakes occur, so they received the least amount of shock.
2. Until recently, books have been the most important method of preserving knowledge.
SD a. Without books, much of the knowledge of past centuries would have been lost.
SD b. Many writers throughout history kept notebooks of their thoughts and ideas.
SD c. During the Middle Ages, monks spend their lives copying books by hand.
R d. The National Library in Manila is given a copy of every book and every thesis published in the Philippines.
Explanation:
Hope it helps ☺️
Correct me if I'm wrong ☺️