The weight of the lithosphere keeps the mantle in a semi-solid state. what can you infer from this?

The weight of the lithosphere keeps the mantle in a semi solid state and from this we can definitely infer that pressure actually raises the melting point of the solids. This is the reason why the mantle of the earth is in a semi solid state. This actually creates a balance and that should never be disturbed as it can create huge volcanic eruptions and earthquakes.

The us is first  the  u.s. economy  remains the  largest in the world  in terms of nominal  gdp. however, the  u.s. economy  loses its spot as the number one  economy  to china when  measured  in terms of  gdp  based on ppp. in these terms, china's  gdp  is $23.19 trillion exceeds the  u.s. gdp  of $19.42 trillion