Finally, certain information is then transferred to long-term memory in a section in the frontal lobe of the brain known as the cerebral cortex. In the hippocampus, information is organized, and it is during this process that parts of the image of our experience fade away.
Then, these images are sent to the hippocampus and stored temporarily in short-term memory. Scientists believe that brain cells called neurons first transform the sensory stimuli we experience into images in our immediate memory. When we experience something, the information is sent via our senses to the hippocampus, where it is processed.
It is agreed, though, that the hippocampus, a part of the brain, is undeniably important for memory. Theories about how brain works remain a topic of debate. One can infer from the passage that -.Ī) there is no difference between the atmospheres of Venus and the Earth.ī) the atmosphere of the Earth consists of mainly carbon dioxide.Ĭ) the more carbon dioxide in the atmosphere, the warmer the world will tend to get.ĭ) lack of atmosphere causes a very high surface temperature on Venus.Į) Venus had once enjoyed a climate of the sort hospitable to life. We understand from the passage that the atmosphere of Venus -.Ī) is thinner than the atmosphere of the Earth.ī) contains much more carbon dioxide than that of the Earth.Ĭ) traps less heat radiation compared to the atmosphere of the Earth.ĭ) blocks out dangerous rays from the sun.Į) is far colder than the atmospheres of other planets in our solar system.ģ. According to the passage, data from the Venus study can be used to -.Ī) measure the amount of carbon dioxide in the atmosphere accurately.ī) increase the emission of carbon dioxide into the atmosphere.Ĭ) test the efficiency of the spacecraft sent to Venus by NASA.ĭ) predict future agricultural problems on Earth.Į) determine the topography and the surface characteristics of the Earth.Ģ.
Thus, the Venus studies are believed to be important to the understanding of possible adverse effects on the Earth’s agriculture that could result from the long-term use of fossil fuels, which add carbon dioxide to the atmosphere.ġ. Because of its higher percentage of carbon dioxide, Venus’ atmosphere traps much more heat radiation than does the Earth’s. Venus has a relatively thin atmosphere like the Earth’s, but Venus’ atmosphere consists of more than ninety percent carbon dioxide, compared to less than four percent in that of the Earth. Such a greenhouse effect is created when energy in the form of sunlight easily passes through a planet’s atmosphere, warms its surface, and is converted to heat radiation that is then held in by the atmosphere from top to bottom. Data from the Pioneer spacecraft of NASA apparently prove the theory that the high surface temperature of Venus is due to an atmospheric greenhouse effect caused mainly by a blanket of carbon dioxide.
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