Sea floor spreading adds more crust to the ocean floor and at the same time older strips of rock move outward from either side of the ridge.
Answer:
The stars mass (once it becomes a star) is inversely proportional to its lifetime as a main sequence star. A red dwarf can survive for many billions of years; a star that has twice the mass of the Sun, such as Sirius A, will have 25% of the Suns lifetime.
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Explanation:
Migration helps in improving the quality of life of people. It helps to improve social life of people as they learn about new culture, customs, and languages which helps to improve brotherhood among people. Migration of skilled workers leads to a greater economic growth of the region.
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If the air temperature at sea level is 20 degrees Celsius, the temperature at 3000 meters will be approximately 7 degrees C.
