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To melt solid I2, one must overcome the covalent bonds holding the molecules together.
Compaction removes pore spaces between grains in sediment, increasing pressure and causing grains to move closer together. Cementation occurs when minerals precipitate from groundwater and fill in the remaining pore spaces, binding grains together. Together, compaction and cementation help to solidify loose sediment into cohesive sedimentary rocks.
Rocks in the mantle at divergent boundaries melt due to the decrease in pressure as tectonic plates move apart. This reduction in pressure lowers the melting point of the rocks, causing them to melt and form magma.
"Melt you popcicle" is a lyric from the song "California Gurls" by Katy Perry. In the context of the song, it is likely meant to suggest a feeling of attraction or desire that is so intense, it can "melt" or overpower someone like a popsicle melting in the sun.
The mantle melts at divergent margins due to decompression melting. As tectonic plates move apart, the pressure on the mantle decreases, causing it to melt and rise to the surface, leading to the formation of new oceanic crust. This process is known as seafloor spreading.