Wearing heavy or protective clothes in the cold climates is the human action that does not alter the Earth's landscape.
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Answer: sedimentary basin
Explanation:
sedimentary basin
The Rub' Al-Khali desert is a sedimentary basin elongated on a south-west to north-east axis across the Arabian Shelf.
2. An indicator shows if the top of the map is north, is the correct answer.
Other answers:
1. Lines could be considered symbols, but an indicator on a map is more of a symbol.
3. An image of a man and a woman representing the location of the restrooms maybe a better symbol, but it's not an example that helps us understand maps.
4. A title describes the map, but isn't really a symbol.
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A comet is a smaller celestial body orbiting the sun, often with a tail made of debris. Debris from a comet can turn into a meteor, which means that is has entered into Earth's atmosphere and burns due to the friction with the Earth's atmosphere. If a meteor is large enough, it can survive this fall into Earth's atmosphere and strike the Earth, on land this would leave an impact crater, or a collision site where the meteor met the surface. This can also happen in water, but may be difficult to see and may not leave an impact crater. Simply, Comet to Meteor to Impact crater.