When a red giant nears the end of its life cycle, it expands and contracts, shedding its outer layers. These layers form a big cloud of gas and dust called a:

What is a reasonable action that provides safe water for communities?

The separation of northern ireland from the republic of ireland is an example of

Explain the reason for having an equator and a prime meridian. how do these two lines us to navigate our world? describe your opinion in at least two to three sentences.