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Planets can be twins? Venus is known as Eath's twin. At one time Venus was the closest to Earth, but has grown to become less and less like Earth over the years. Therefore Venus is getting more and more dangest to study as the years go on.

Venus is very important to study. Venus is the closest planet to Earth in density and in size. Sometimes in distance too. Depending on what time of the year it is, due to plantet orbiting around the Sun, will depend on if Venus or Mars is closer to Earth.

Venus is difficult to study because of how dangest it is. Almost 97 percent of Venus is carbon dioxide. Clouds of highly corresive sulfuric acid are in Venus' atmosphere. The pressure on Venus is 90 times the pressure on Earth. Venus is the hottest planet in the solar system, even though Mercury is closer than Venus to the Sun. Venus has an average of 800 degrees Fahrenheit. The conditons on Venus are far more extreme than conditions on Earth.

Due to all the changing features Venus has had over the years. Venus still has some things like Earth. Some familiar features are valleys, mountains, and craters. The changing has caused no spaceship to touch down on Venus in more than three decades. No spacecraft has ever survived the landing more than a few hours.

This proves how the author suggests that studying Venus is a worthy pursuit, but is very dangest. Venus is important to study because it is Earth's "twin." This shows how Venus is dangest. Venus is challenging to study, but is worth the danger.

Score: 2