It becomes brighter because, THE CORE CONTRACTS, RAISING THE TEMPERATURE AND EXTENDING THE HYDROGEN BURNING SHELL OUTWARD. This stage is called the hydrogen shell burning phase and during this phase the star grows luminous.
<span>Earth’s rotation takes about
24 hours. By definition, the rotation of earth is the amount of time it takes
to rotate once around its axis. On average, this apparently happens once a day i.e
after every 24 hours with respect to the sun (solar day) and once after every
23 hours, 56 minutes and 4.09 seconds with respect to the stars (sidereal day).
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Answer:
(A)
Explanation:
The population in the US and Canada is most dense along the coasts and navigable rivers where people were first able to get to settle. It is also affected by climate, soil quality. availability of water and the topography of the land. The least settled areas are very cold, swampy, desert wastelands and/or steep rocky , inaccessible areas which can be farmed or easily built upon.
