Read this excerpt from a student’s essay that compares and contrasts Earth to Mars. Which is NOT a true difference? Mars, the outermost of the four terrestrial planets (Mercury, Venus, Earth, and Mars), is the second closest to Earth after Venus. It is slightly more than half the size of Earth and almost twice the size of the Moon. The atmosphere is very thin, less than one one-hundredth that of Earth, and composed primarily of carbon dioxide.
Mars has a denser atmosphere than Earth does.
Mars is smaller than Earth and larger than Earth’s moon.
Venus is closer to Earth than Mars is.
Mars is farther away from the Sun than Venus is.
Answers
Answered by
7
Answer:
1st
Explanation:
the first one is incorrect
Answered by
0
Answer:
The correct answer is Option A
Explanation:
- Astronomers frequently categorise the planets in our Solar System into two groups: the inner planets and the outer planets. The smaller, more rocky inner planets are located closer to the Sun. The larger, gas-dominated outer planets are farther away and more massive. Mercury, Venus, Earth, and Mars are the inner planets, and they are listed from closest to farthest away by distance from the sun. The outer planets, Jupiter, Saturn, Uranus, and Neptune, appear after an asteroid belt. The intriguing fact is that the gas giants have been found in some other planetary systems relatively close to the sun. As a result, astronomers can engage in an interesting exercise by predicting how our Solar System formed.
- According to conventional wisdom, the young Sun blew the gases into the Solar System's outer reaches, which is why there are so many enormous gas giants there. The "hot Jupiters" in a few extrasolar systems, however, orbit very near to their Sun.
- The term "terrestrial planet" can be misleading because each of the four inner planets has a very different environment. The four inner planets are known as terrestrial planets because they have solid surfaces and, as the name implies, are somewhat similar to Earth. They have either no moons or few moons and are primarily composed of heavy metals like iron and nickel. Based on the data from NASA, brief summaries of each of these planets are provided below.
- Mercury: Mercury is both the smallest and closest planet in our solar system. Compared to how long it takes the sun to rotate, it rotates slowly (59 Earth days) (88 days). There are no moons on the planet, but it does have a flimsy atmosphere (exosphere) made up of oxygen, sodium, hydrogen, helium, and potassium.
- Venus: Prior to the discovery that its surface is 900 degrees Fahrenheit hot enough to melt lead, Venus was thought to be Earth's twin planet (480 degrees Celsius). The planet rotates slowly, with a 243-day Venusian day and a 225-day orbit around the sun. It has a thick atmosphere with nitrogen and carbon dioxide. The Venus Express spacecraft of the European Space Agency is currently travelling to the planet, which has no rings or moons.
- Earth is the only planet where life as we know it exists, but astronomers have discovered some planets that are nearly Earth-sized that are outside of our solar system in areas that may be suitable for human habitation. It has a single moon and no rings, and its atmosphere is composed of nitrogen and oxygen. To provide telecommunications, weather reports, and other services, many spacecraft orbit our planet.
- Mars: Due to the planet's ancient surface evidence of liquid water flowing, Mars is a subject of intense research. But now its atmosphere is a thin mixture of argon, nitrogen, and carbon dioxide. It has no rings and only two tiny moons, Phobos and Deimos. Mars has days that are slightly longer than 24 Earth hours, and it completes one orbit of the Sun in roughly 687 Earth days. Currently, a small fleet of orbiters and rovers, including the sizable NASA Curiosity rover that touched down in 2012, are present on Mars.
Reference Link
- https://brainly.in/question/13509423
- https://brainly.in/question/2356854
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