1. <span>the process started with the collapse of a nebula
The universe almost certainly didn't start from the collapse of a nebula.
2. The mantle is the middle layer.</span>
It's had been built about since 1958.
I believe it’s C.
A political map shows countries in different colors which helps to understand the map better
Smaller scale has less variables and correlations to be based on while a larger scale has a bigger amount of mathematical numbers to be based on
I believe your answer to be limestone, good sir.