Answer: Body waves travel through earths interior while surface waves travel along the earths surface. Body waves travel more rapidly than surface waves.
Explanation:
I would say d; not entirely sure
<span>National symbols of Canada are the symbols that are used in Canada and abroad to represent the country and its people. Prominently, the use of the maple leaf as a Canadian symbol dates back to the early 18th century, and is depicted on its current and previous flags, the penny, and on the coat of arms (or royal arms). Hope this will be useful im sorry if its not</span>
The correct answer is - carving terraced farmlands.
The Incas revolutionized the agriculture in South America by starting to use the carved terraces for production. With this technique, the Incas managed to maximize the arable land area, and to perform farming on places where naturally will be impossible. This method is widely used nowadays, and since the amount of arable land is reducing in the lowlands, it is of great benefit for food production in places that are not suitable for building.