What causes sound to echo when hikers shout towards a canyon wall?

Why would the composition of a meteorite resemble the earth's interior?

Which example gives the relative location of a place? 50 main street 33 degrees n latitude, 91degrees w longitude east of the library 1600 pennsylvania ave., washington, d. c.

Which of the following lists shows the events in the correct order? a.)the creation of the british raj, the sepoy rebellion, gandhi’s campaign of civil disobedience, the partitioning of indiab.) gandhi’s campaign of civil disobedience, the sepoy rebellion, the creation of the british raj, the partitioning of indiac.)the sepoy rebellion, the creation of the british raj, gandhi’s campaign of civil disobedience, the partitioning of indiad.)gandhi’s campaign of civil disobedience, the creation of the british raj, the partitioning of india, the sepoy rebellion