Question

match the layer with its characteristic.
mantle
?
ranges from 6 km to 70 km thick
crust
?
convection here leads to earthquakes
moho barrier
?
has a liquid and solid layer
core
?
separates the crust and mantle

Explanation:

• Crust: The Earth's crust is the outermost layer. Oceanic crust is about 6 - 10 km thick, and continental crust can be up to 70 km thick.
• Mantle: Convection currents in the mantle (specifically in the asthenosphere, which is part of the upper mantle) cause the movement of tectonic plates. When these plates interact (e.g., at plate boundaries), it can lead to earthquakes.
• Moho Barrier (Mohorovičić discontinuity): This is the boundary that separates the crust from the mantle. It was discovered by seismologist Andrija Mohorovičić.
• Core: The Earth's core has two parts - the outer core (which is liquid, mainly composed of iron and nickel) and the inner core (which is solid, also mainly iron and nickel).

Answer:

• Mantle: Convection here leads to earthquakes
• Crust: Ranges from 6 km to 70 km thick
• Moho Barrier: Separates the crust and mantle
• Core: Has a liquid and solid layer