The light which came from the sun is known as sunlight .the sun is the biggest source of light .the sunlight has duel qualities as well as it  is fruitful in some character and in some cases it is dangerous.                                                                    

For human body sunlight is beneficial and some cases it very dangerous as for animals or any other creature. As human body gets vitamin-D from sunlight and thus the bones are strong the danger from sunlight is that from this cancer will produce in the human body skin cancer is much created from the sunlight.

                                                                           

As sunlight may also heat up our body sunlight also have a great effect on the agriculture .As sunlight is necessary for the crops ,vegetables ,and fruit it is also dangerous for the crops ,vegetables ,and fruit from sunlight the crops are ripe and ready for eating as dangerous the ready crop will destroy from it.

                                                   

As there are many useful and harmful effect of sunlight some time it is favour able and some time it is not.if there are not sunlight then life on the earth is not possible and there would be dark on the earth and we can not see any thing in this world.