Science in the news quiz.Direction: Read the late-breaking news in our Science News section on pages 4 to 7. Then, test your knowledge by answering the questions below. Circle the correct letter. 1 How does a helmet protect against brain injury? A. A helmet eliminates impact force. B. It prevents accidents from occurring. C. It absorbs impact force. D. It reroutes force to the pavement, rather than the skull. 2 Which of the following features is most necessary for the helmet to work? A. interior padding Bits or characters that fill up unused portions of a data structure, such as a field, packet or frame. Typically, padding is done at the end of the structure to fill it up with data, with the padding usually consisting of 1 bits, blank characters or null characters. See null and bit stuffing. B. adjustable chin strap C. air vents D. outer shell 3 The main reason for a deep-sea diver diver, general term used to refer to many diving birds, e.g., the loon, the grebe, and some ducks, auks, and penguins. to wear the new submarine suit is that it A. maintains pressure at 1 atmosphere. B. protects against shark attacks. C. helps the diver sink faster. D. helps the diver float. 4 What is the primary reason(s) the Iberian lynx The Iberian Lynx (Lynx pardinus), sometimes referred to as the Spanish Lynx, is a critically endangered feline mammal native to Spain and Portugal in Southern Europe. is threatened with extinction? A. Humans introduced a virus that killed their primary food source. B. Their habitat was cut down to make room for farmland. C. Most lynx lynx, name given to several related small, ferocious members of the cat family. All have small heads, tufted ears, and heavy bodies with long legs and short tails. All are primarily terrestrial, although they are able to climb trees. are too secluded to find a mate. D. All factors contributed to their demise. 5 An endangered species endangered species, any plant or animal species whose ability to survive and reproduce has been jeopardized by human activities. In 1999 the U.S. government, in accordance with the U.S. is most likely to go extinct if A. it has an adequate supply of food. B. it is relocated to a zoo. C. its habitat is not destroyed. D. humans don't do anything to help it. 6 Which of the following best describes why the Three Gorges dam Three Gorges Dam, 607 ft (185 m) high and 7,575 ft (2,309 m) long, on the Chang (Yangtze) River, central Hubei prov., China, 30 mi (48 km) W of Yichang. The largest concrete structure in the world, the dam was constructed from 1994 to 2006. is being built? A. It will attract tourists as the largest dam in the world. B. It will help China's economy by generating electricity and irrigating crops. C. It will help conserve endangered en·dan·ger tr.v. en·dan·gered, en·dan·ger·ing, en·dan·gers 1. To expose to harm or danger; imperil. 2. To threaten with extinction. fish species. D. It will prevent flooding downstream. 7 Why is China's decision to build the dam controversial? A. The effect of the dam on the environment is not certain. B. The reservoir will flood many homes upstream. C. The river can cause bank erosion and flooding downstream. D. all of the above 8 Paleontologists studying the 8-million-year-old bird, fossil could not conclude which of the following: A. It was a plant-eater. B. It was possibly the largest bird to ever live. C. It did not fly. D. It had strong legs. ANSWERS 1. c 2. b 3. a 4. d 5. d 6. b 7. d 8. a TAKE IT FURTHER Research two or more species in your state that are threatened by human activities. As a class, create a map of each animal or plant's location. Which areas are most threatened and why? WEB SEARCH: Survivors of traumatic brain injuries Traumatic brain injury (TBI), traumatic injuries to the brain, also called intracranial injury, or simply head injury, occurs when a sudden trauma causes brain damage. TBI can result from a closed head injury or a penetrating head injury and is one of two subsets of acquired brain suffer from what symptoms? |
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