Answer:
In geology, the term sial refers to the composition of the upper layer of Earth's crust, namely rocks rich in aluminium silicate minerals. It is sometimes equated with the continental crust because it is absent in the wide oceanic basins, but 'sial' is a geochemical term rather than a plate tectonic term.
Explanation:
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Sedimentary rock can tell us about animals that used to live there, weather, droughts, acidity in water and air, and plant life that used to exist. please mark brainliest!!!
Answer:
Deep within the Earth it is so hot that some rocks slowly melt and become a thick flowing substance called magma. Since it is lighter than the solid rock around it, magma rises and collects in magma chambers. Eventually, some of the magma pushes through vents and fissures to the Earth's surface.
Explanation:
The correct answer is b because not all countries can support themselves (c) and malnourishment can occur in any country. For example, in the United States, around 40 million people lived in food insecure households. Also, according to my middle school english teacher, the world will not have enough food to sustain itself by 2050 (a).
