Which of the timelines above represents the changes that have taken place in communications technology?
a.
timeline a
b.
timeline b
c.
timeline c
d.
timeline d

A/an map shows the types of rock and/or sediment present in a particular region.a map that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.to show the dominant weather pattern in a region over a long period, a scientist is likely to create a/an map.a map has contour lines, which connect points at the same elevation.a map that uses shading to represent rates of violent crime across a state is an example of a/an map.

Give three differences between oceanic and continental crust brainliest will be awarded

List 3 factors commonly used to select the location of a city