La tettonica a placche e la storia della Terra - Exercises in English

6 esercizi

SVOLGI

INFO

Continental crust

The continental crust

has a uniform thickness

is thicker than the oceanic crust

lies on lithosphere

lies on the lithospheric mantle

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Plate tectonics

True or false?

The density of the oceanic crust is higher than the density of the continental crust.

The mantle is adjacent to the inner core.

Geothermal flow is inhomogeneous.

Earth’s internal temperature reaches values between 4500 and 5000 °C in the outer core.

Vero o falso

The geological time scale

The geological time scale is divided into four eons; in order from oldest to youngest, these are

Proterozoic, Phanerozoic, Archean and Hadean

Hadean, Archean, Proterozoic and Phanerozoic

Hadean, Archean, Phanerozoic and Proterozoic

Phanerozoic, Hadean, Archean and Proterozoic

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Types of boundary

a. Divergent boundaries
b. Convergent boundaries
c. Transform boundaries

Completamento chiuso

The density of the Earth

The average density of the Earth is

approximately 2,7 $g / c m^{3}$

more than 6 $g / c m^{3}$

5,5 $g / c m^{3}$

4,5 $g / c m^{3}$

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Geologic periods

Geologic periods can be divided into

eras

millions of years

eons

epochs

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