Answer:
C) when nuclear fusion begins in the core
Explanation:
- <u>The protostar is a main-sequence star that has a core temperature that exceeds abut 10 million K and is needed for the hydrogen to operate efficiently and the </u><u>length </u><u>of this process depends on nature and the stellar </u><u>mass</u><u>, as the huge massive star have a greater and bigger core and fusion takes fast.
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- A protostar is also called as primitive star and represents the earliest phases of the process of the stellar evolution and takes place after it leaves form the main sequence star.
<span>The Global Surface Temperature is Rising
</span>NOAA states:<span>Many lines of scientific evidence show the Earth's climate is changing. This page presents the latest information from several independent measures of observed climate change that illustrate an overwhelmingly compelling story of a planet that is undergoing global warming. It is worth noting that increasing global temperature is only one element of observed global climate change. Precipitation patterns are also changing; storms and other extremes are changing as well.
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Answer:
B. obese
Explanation:
Since highly developed nations are able to afford more food than low developed nations, there will be many people who become obese due to overconsumption of food and this can lead to many health problems like high blood pressure, diabetes, and stroke which can cause deaths and lower the population in highly developed nations.
Explanation:
The Ottoman Empire was the largest Empires in history.
Muslim Turks created the Ottoman Empire and it became a very powerful states
It was an empire motivated and supported by Islam and by the Islamic institutions.
Ottoman Empire was a superpower that existed for six hundred thirty-four years and it was the largest empires to govern the boundaries of the Mediterranean Sea.
