TAILIEUCHUNG - Mastering skills for the toefl ibt advanced part 40

You may see a word or phrase in the passage that is underlined in purple, Definitions or explanations for these words or phrases are provided at the end of the passage. You can skip questions and return to them later as long as there is time remaining. When you are ready, press Continue. | Chapter 2 1051 Astronomy Listen to a discussion in an astronomy class. Fill in the diagram with the information that you hear. Track. 87 Key Vocabulary Interior the inside part of something dense thick closely packed together dissolve to mix or dissipate into a liquid catalyst a thing or a person that causes something to . happen photosynthesis the process in which plants use energy from the sun to make their own food 1. According to the professor what caused hydrogen and helium to escape from Earth s atmosphere A Evolution of plants B Wind from the sun C Heat from the planet D Outgassing 2. After the process of outgassing which gases made up most of Earth s atmosphere Choose 2 answers. A Oxygen B Carbon dioxide C Water vapor D Hydrogen 3. What does the professor say caused life to form A The introduction of oxygen to the atmosphere B The formation of liquid water on the planet C The cooling of the Earth D The process of photosynthesis Fill in the blanks to complete the summary. The professor explains how the was formed. First solar wind blew the and helium gases into space. Next activity from the Earth s interior released . carbon dioxide and nitrogen into the air outgassing creating a hot dense. Once the Earth cooled water vapor condensed into precipitation. Once algae and plants evolved they absorbed carbon dioxide and released into the atmosphere. - 274 Chapter 2 life tat to tergy d 1 IIK8 Zoology ten to a lecture in a zoology class. Fill in the diagram with the information that you hear. Vocabulary inant more important or powerful than others pfiary spending a lot of time alone l fthrow to force a leader out of the position of power exception a person or thing that s different from others -. hierarchy a system for organizing individuals in a vertical group or organization iijhpanzdt - According to the professor in which aspect do chimps and gorillas differ most A Physical traits of the dominant male B Group organization C Intelligence D DNA patterns 3. What .

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