Sunlight has many positive effects on human beings.But it can give negative for us .However human being need the light from the sun to survive.

First of all,sunlight has the photsynthesis to heat up seeds to give food light to new plants.It provide people,animals and all living organisms in the world,the essence and energy to create life.Sunlight also provodes scientists the chance to collect solar power as an important form energy and power to make electricity.
       Secondly,sunlight give people the vitality and feelings of motivation that help them feel happy when they study,work,travel and enjoy their free time.Natural sunlight also provide lots of nutrition which are need for people,animals and plants.for example vitaminA and vitaminD are found with sunlight and helps us grow stronger and healthier as we get older.
       On the other hand,sunlight may give us some negative effect in our life .For example when people stay outside for a long time and it is a hot sunny day,they are offected by strong ultraviolect ray which can easily make people get skin diseases.Such as skin cancer.Another problem is that ,too much sunlight can make the earth have drougthty which makes it difficult to grow the fruit and regetable.And can also make the ground crack,bacause of water drying up.

 All in all i think sunlight is great.However it can have some negative effect which may cause people to get sick.But we use sunlight everyday.Everyone enjoys sunlight and it can make us feel happy and healthy.So we need sunlight in our lives.Yet we need to learn how to use sunlight wisely. 

 

Hello, Melody! Good work overall just make sure next time that you use proper spacing. The space between the punctuation mark from one sentence to another. "Phrases" that have been previously mentioned are not to be repeated again. When we are referring to things in general, we often use the plural noun form. Lastly, the pronoun "I" is always written in the upper case. Just keep on practicing.