Stage 1- Stars are born in a region of high density Nebula, and condenses into a huge globule of gas and dust and contracts under its own gravity.
This image shows the Orion Nebula or M42 .
Stage 2 - A region of condensing matter will begin to heat up and start to glow forming Protostars. If a protostar contains enough matter the central temperature reaches 15 million degrees centigrade.
This image is the outflow (coloured red)and protostar.
Stage 3 - At this temperature, nuclear reactions in which hydrogen fuses to form helium can start.
Stage 4 - The star begins to release energy, stopping it from contracting even more and causes it to shine. It is now a Main Sequence Star.
The nearest main sequence star to Earth, the Sun
Stage 5 - A star of one solar mass remains in main sequence for about 10 billion years, until all of the hydrogen has fused to form helium.
stage 6 - The helium core now starts to contract further and reactions begin to occur in a shell around the core.
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Answer:
c
Explanation:
60 divided by 4= 15 60-15= 45 divided by 10 =4.5 45-4.5= 40.50
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Answer:
Boat Inspection and Cleaning Procedures for All Watercraft Owners, are a set of mandatory procedures for all vessel owners, and those who fail to do so may face legal penalties. This is because these procedures protect the vessel's engine from overheating and protect the entire physical structure of the vessel, allowing the vessel to have a longer useful life and function for a long time. In addition, these procedures promote great environmental benefits, when used correctly, among these great benefits, we can mention the impediment of the spread of mussels and other invasive species that can destroy the ecosystem of the places.
Explanation:
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Is this a question to an story you had to do research on or had to read if so, can you please send a link so I can answer correctly.
Answer:
I hung new drapes that I had recently made in the west windows.
Explanation:
This clearly states what you are trying to say and gets the point across