Answer: the birth of Arabian civilization can be dated to 7th century A.D. Then Islam was spreading westwards to northern Africa...from Egypt to Maroccos. From Maroccos Muslims spread to Iberian peninsula. But they were not able to move more northwards ....beyond Pyrenees. Christian states were stable, well-organized and were able to organize their armies and protect themselves.
Explanation: they were not able to move beyond Pyrenees because already in the north of Iberian peninsula there were well-organized Christian kingdom. They were small but they constituted a barrier. The only significan Arabian invasion to Europe consitutes "battle of Poitiers" (sometimes called "battle of Tours) in 732 A.D. There Franks led by Charles Martel were victorious and Arabians had to retreat behind Pyrenees. Later on Arabians were expulsed from Iberian peninsula (first from Portugal, then from Spain).
Answer:
Erosion breaks existing rocks and turns them into sediments. The sediments can be formed into rocks by the chemical reactions of dissolved seashells ( Calcium Carbonate.) This reaction can form sediments into rocks very quickly like the formation of concrete ( same chemical reaction). Erosion only happens on the earth's surface.
As erosion only happens on the earth's surface, sedimentary rocks are only formed on the earth's surface.
In other words:
Sedimentary rocks only found on or close to Earth's surface because sedimentary rocks are made of materials deposited in layers at the Earth's surface.
1 . Find a safe place to land a plane on a foggy day. - RADAR
2 . Determine if Greenland is larger than Africa. - topographical map
3 . Get to the nearest pizza parlor. - GPS
4 . Plan a cross-country ski trip. - Winkel Tripel Projection
5 . Show classmates where Ecuador, Nova Scotia, and Belgium are located. - globe
Explanation:
- Radar is a device for detecting objects by radio waves and determining their distances.
- Today's radars, in combination with GPS are also used to represent the geographical features of the area within the radar range.
- A globe is a small-scale ball-like representation of the Earth, planets, or celestial spheres with a cartographic representation of a given surface.
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The answer is C.) Volcanoes and earthquakes both occur along plate boundaries
