study the image of earths layers. which statement correctly compares the thicknesses of earths layers…
study the image of earths layers. which statement correctly compares the thicknesses of earths layers? earths mantle is thinner than its oceanic crust. earths outer core is thicker than its mantle. earths continental crust is thicker than its lithosphere. earths lithosphere is thinner than its asthenosphere. asthenosphere 660 km lithosphere 100 km upper mantle continental crust 30 - 40 km mantle lower mantle oceanic crust 5 km outer core inner core 2,885 km 2,270 km 1,216 km
Answer
Explanation:
Step1: Analyze Earth's mantle thickness
The mantle is much thicker than the ocean - ic crust. The mantle extends from about 30 - 40 km (beneath continental crust) or 5 km (beneath oceanic crust) down to about 2885 km, while oceanic crust is only 5 km thick. So the first option is incorrect.
Step2: Analyze outer core and mantle thickness
The mantle is thicker than the outer core. The mantle is about 2885 km thick and the outer core is about 2270 km thick. So the second option is incorrect.
Step3: Analyze continental crust and lithosphere thickness
The lithosphere is thicker than the continental crust. The lithosphere is about 100 km thick and the continental crust is 30 - 40 km thick. So the third option is incorrect.
Step4: Analyze lithosphere and asthenosphere thickness
The lithosphere is about 100 km thick and the asthenosphere is 660 km thick. So Earth's lithosphere is thinner than its asthenosphere.
Answer:
Earth’s lithosphere is thinner than its asthenosphere.