Answer:
Mars
Explanation:
At present there are around 540 extrasolar known planets. These are distant planets so not a lot is known about them, but there are some basic things that provide some basic information about them. It seems that the majority of them are planets that resemble Jupiter, being large and gaseous planets. It is very rare that a planet resembles Mars, in fact it is the rarest type of planets among the known planets so far. Even the planets that do share some characteristics with Mars, they also have characteristics that make them different, especially their size and distance from their star. Mars type of planets are very rare because of what Mars have actually become. The planet is assumed to have been similar to Earth, but its core has stopped its activity, resulting in no magnetism, and no volcanic activity. Also, the atmosphere of this planet is very thin, the temperatures vary greatly throughout the day, and its surface is covered with thick layers of dust and craters.
Answer:
Chang'an to Duhuang
Explanation:
The city of Marakanda to Antioch are linked through the Silk Road which is known for its prevalent silk trade. The Silk Road is a trade route in the Asian-Pacific region which connects the East to the West.
The cities through which an individual can travel to get to Marakanda and Antioch are Chang'an to Duhuang
<h2>Answer:</h2>
<u>Ozone is produced by the </u><u>reaction of solar radiation with atmospheric oxygen</u>
<h2>Explanation:</h2>
Ozone is a special form of Oxygen which is present in the atmosphere and it protects us from dangerous ultraviolet radiations which comes from the sun. The chemical formula of ozone is O3. This gas is produced naturally in the stratosphere when some highly energetic solar radiation come from the sun and strikes molecules of oxygen present in the atmosphere and cause the two oxygen atoms to split apart in a process called photolysis.