Earth structure and dynamics

Between the methods of study of the geosphere, it is an indirect study method:

•  Volcanoes

• The study of seismic waves

• Well drilling

•  Meteor studies

Thanks to the direct methods of studying the geosphere, we have reached depths of, aproximately:

• 3 Km

• 7 Km

• 12 Km

• 100 Km

The property that determines that the densest areas of the earth's crust tend to sink and the less dense to rise is called:

• Sphericity

• Isostasy

• The magnetic field

• The gravitational field

The Richter scale to analyze earthquakes measures:

• Intensity

• Magnitude

• Duration

• Risk

At what type of plate boundary is new crust created?:

•  At subduction zones

• At oceanic ridges

• At transform boundaries

• All of the previous are right

The point on the earth's surface where seismic waves first arrive is called:

• Focus

• Hypocenter

• Epicenter

• Tectonic foult

The fastest body seismic waves are:

• P waves

• S waves

• Love waves

• Rayleigh waves

It is true with respect to S waves that:

• They are the fastest

•  Its speed increases in gases

• The particles vibrate in the same direction as the wave

• They are not transmitted through fluid materials

The earth's magnetic field is originated by the convection currents of the material of:

• The crust

• The mantle

• The outer core

• The inner core

The geochemical model of the internal structure of the Earth is based on:

• The fluidity of the layers

• The chemical composition of the layers

• The temperature of the layers

• None of the above