Because vegetation, like grass, trees, shrubs, etc., protect the earth below from outside elements. Roots from these vegetation keep the soil on the ground. Without trees there is an increased chance of mudslides, flooding, erosion, etc.
The mesosphere is a layer of Earth's atmosphere. The mesosphere is directly above the stratosphere and below the thermosphere. It extends from about 50 to 85 km (31 to 53 miles) above our planet.
Latitude lines are parallel and measure east-west around the globe. Hope this helps! :)
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"Silk Road trade routes" is the one route among the following choices given in the question that he would most likely follow to achieve his goal. The correct option among all the options that are given in the question is the third option or option "c". I hope that this is the answer that has come to your desired help.
