Answer:
1- Option (D)
2- Option (C)
Explanation:
The rocks of oceanic crust are created by spending a huge amount of time in a water-rich environment. During the subduction process, the plates at greater depth are comprised of rocks that contain water in them. As this water reaches the mantle, the conditions of pressure and temperature forces these hydrated rocks to remove the water from them. This water then mixes up with the mantle and thereby reduces the melting point of the mantle rocks. This results in the formation of magma. These magma being lighter eventually rises upward that eventually leads to the formation of the volcanoes. This process of melting is known as the hydration-induced melting.
Thus, the hydration-induced melting process is responsible for the formation of volcanoes on the overriding plates.
Hence, the correct answers are mentioned above.
Answer:
Seismic waves are fundamentally of two types, compressional, longitudinal waves or shear, transverse waves. Through the body of the Earth these are called P-waves (for primary because they are fastest) and S-waves (for secondary since they are slower).
A..I belive...<span> Great Britain, for example, decentralizes power in practice though not in </span>constitutional<span> principle?</span>
Answer:
Explanation:
an Indic language of northern India, derived from Sanskrit and written in the Devanagari script. It is the fourth most widely spoken language in the world, with more than 250 million people speaking it as their first language.
