Sedimentary rock cannot be transformed into igneous rock because the processes that form sedimentary rock, such as compaction and cementation of sediments, are fundamentally different from the processes that form igneous rock, such as the cooling and solidification of molten magma. Once sedimentary rock has formed, it would need to be completely melted and then cooled to form igneous rock, which is not a common natural process. Additionally, the minerals and textures present in sedimentary rock are not conducive to the formation of igneous rock. Therefore, the transformation of sedimentary rock into igneous rock is highly unlikely under natural conditions. **

The question seems to be a bit confusing as it appears to be asking about the same number, which is six. Therefore, the answer would be the same for both options. The number six is a positive integer that comes after the number five and before the number seven. It is also the product of two and three. **

The gaps in metamorphic rock can be filled with a variety of materials, including minerals, fluids, and even other rocks. During the process of metamorphism, minerals can recrystallize and fill in the gaps, creating a more solid and compact rock. Additionally, fluids such as water and carbon dioxide can infiltrate the rock and deposit new minerals in the gaps. Sometimes, fragments of other rocks can also be incorporated into the gaps, especially in the case of dynamic metamorphism where rocks are subjected to intense pressure and deformation. **

Classes and social strata do not completely dissolve, but they can become less rigid and more fluid over time. Economic, social, and political changes can lead to shifts in the distribution of wealth and power, which can impact the boundaries between different classes and social groups. Additionally, movements for social equality and inclusion can challenge traditional hierarchies and create more opportunities for individuals to move between different social strata. However, despite these changes, class and social strata continue to play a significant role in shaping people's opportunities and experiences in society. **

The mandate reference number is not the customer number or the invoice number. It is a unique identifier assigned to a specific mandate, which is an authorization given by a customer to allow a company to collect payments from their account. This number helps to track and identify the specific mandate associated with a payment transaction. **

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity. The electron number is equal to the atomic number in a neutral atom, as it has the same number of electrons as protons. The proton number is the same as the atomic number, as it represents the number of protons in the nucleus. These three numbers are fundamental to understanding the structure and properties of an atom. **

To answer this question, I would need to know the specific number sequence in question. Once I have the sequence, I can analyze the pattern and determine the missing number. Without the sequence, I am unable to provide a complete answer. **

Infinity is not considered a number in the traditional sense. It is a concept that represents something that is unbounded, limitless, or endless. In mathematics, infinity is often used to describe a value that is larger than any real or natural number. While it is not a number in the usual sense, it is a useful concept in mathematics and is often used in various mathematical operations and theories. **