The subordinate clause here is A, "as the layers of ash slowly compressed". Subordinate means that it cannot exist on its own, it has to be a part of the main, independent clause.
Answer:
The Answer is gonna be Jihad (Holy struggle)
This is the Answer
Yes, when you use context clues, you try to figure out what the word mens without looking up the meaning, You use clues in the particular text. You look for words surrounding it to give you an idea of what the word means.
Scientific knowledge change over time because we discover news things or properties that impacts how things actually work in the science world. What impact these have on society is that it helps us be more aware of the things in our world, apply these newly dicover knowledge into our own lives to make it better, and it is the beginning step to knowing and discovering more about the world that we live in.
I believe the answer is D