Author: Study Clue

The sharp drop in S-wave velocity just below the lithosphere is called the A Shadow zone B Moho jump C

The “S-wave shadow” beyond the core mainly indicates the core’s A Solid nature B Granitic rocks C Liquid portion D

When P-waves enter the liquid outer core, they mostly A Stop completely B Speed up sharply C Bend strongly D

Which layer is directly above the outer core? A Upper mantle B Lower mantle C Continental crust D Inner core

Which layer lies directly beneath Earth’s crust? A Upper mantle B Inner core C Outer core D Lower mantle Explanation

When Earth is at perihelion, the Southern Hemisphere summer is slightly affected because Earth’s orbital speed is A Lowest near

When two places lie on the same latitude but different longitudes, the major difference is usually in A Annual rainfall

Why do places on the same longitude generally share the same local solar time? A Same latitude belt B Same

Which term best describes Earth’s spinning that causes daily time change between places? A Annual orbit B Plate drift C

The Earth completes one rotation about its axis in about A 12 hours B 30 days C 24 hours D