Asubmarine sends sonar signals to the ocean floor. over time, the signals take longer to reflect off of the ocean floor and back to the submarine. explain why this is.

Hich of the following best summarizes the text’s depiction of the ancient indus valley cities (namely harappa and mohenjo-daro)? a. the cities were very plain and simple; the people did not focus on art and architecture, devoting their time instead to agriculture and the bare essentials. b. the cities were adorned, or decorated, with almost overwhelming displays of wealth and artistic architecture. c. the cities were extremely clean, relying on an advanced water and sewer system, though this was mainly constructed for the innermost areas of the cities. d. the cities were clean and peaceful, and they were designed in an extremely organized fashion, using an advanced water and sewer system to keep them this way

Based on the information in the graph, what can you conclude about humans in the world in general?

Which types of seismic waves travel through earths interior? select all that apply. a) l waves b) p waves c) s waves