First , the size of our Sun is so small that this star cannot become a black hole. Yet if somehow our sun is replaced by a black hole in the equator, then , according to general formula , the black hole could absorb everything in the universe. But since our black hole is so small, it does not have the power to pull our entire solar system into itself. Since the shape of this black hole is equal to that of our Sun, it also creates a gravitational force equal to that of our Sun. So the planets and satellites of our solar system will not change and they will continue to move like them. Everyone will be in their own orbit. Now come into the world. Question 1: What will happen to the wind ? How do I get gas without the sun ? Solution: The amount of air stored in our Earth's 5 air layers মানে the Exosphere , Thermosphere , Mesosphere , Stratosphere , Traposphere , and the entire weight layer পারবে will allow humans to live for the next 300 years. Question 2: Plants will not die ? What to eat ? Solution: Yes , small trees will be a problem. Not of big trees. The same is true of all the trees that will survive for a long time with the help of sugar and minerals from the soil . The rain-clouds will be the same as before because the sun has nothing to do with the water cycle. Underwater fish , animals and plants will not be a problem.