Answer:
"Horn of Africa"
Explanation:
North Eastern part of the African continent
Igneous rocks, I'm not sure on all of the details about them. I hope that helps though!
Electromagntic wave, such as an X-ray.
Explanation:
- Electromagnetic wave does not require any medium to travel. These waves propagate outwards from the source.
- They can travel even through the vacuum of outer space.
- The major source is the sun which emits radiation in the form of the Electromagnetic spectrum.
- These waves travel through oscillating electrical and magnetic fields generated by the oscillating charged particles.
- These waves oscillate in the perpendicular direction of planes concerning each other and are in form.
- Electromagnetic waves travel at speed of light.
Answer: Mantle plumes, Continental rifts, island arcs, and Continental arcs
Explanation:
Mantle plume is the mechanism of convecting abnormally hot rocks within the Earth's mantle. The plume head partly melts on reaching shallow depths, the plume is often invoked as the cause of volcanic hotspots.
Continental rift refers to the belt of the continental lithosphere where the extensional deformation (rifting) is taking place. Continental rift zones have important consequences and geological features, and if the rifting is successful, leads to the formation of new ocean basins.
Island arcs are long chains of active volcanoes with intense seismic activity found along convergent tectonic plate boundaries. Most island arcs originate on oceanic crust and have resulted from the descent of the lithosphere into the mantle along the subduction zone. They are the principal way by which continental growth is achieved.
Continental arc is a type of volcanic arc occurring as an "arc-shape" topographic high region along a continental margin. The continental arc is formed where two tectonic plates meet, and where one plate has continental crust and the other plate has an oceanic crust along the line of plate convergence, and a subduction zone develops.
Answer:
La Paz is a bit more densely populated than Lima, since the former has a population density slightly higher than this of latter.
Explanation:
In this case, we need to know the populations and occupied area of the city. By definition, population density is the ratio of the population of the city to the occupied area in the same location.
The required information is gathered below:
La Paz (Bolivia)
Population: 1.801 million (Metropolitan area)
Occupied area: 475 square kilometers.
Population density: 3792 inhabitants per square kilometer.
Lima (Perú)
Population: 9.674 million
Occupied area: 2672 square kilometers.
Population density: 3621 inhabitants per square kilometer.
In this case, La Paz is a bit more densely populated than Lima, since the former has a population density slightly higher than this of latter.
