The author's photos are fake, they come from Kenya. My experience placing orders here tells you that their level is very low. I applied for a refund on my order, but what surprised me was that they even posted the article on the Researchgate.net. But this is great, it let me know that the author originally came from Kenya!The author's level is really not good, please believe me. They use researchgate.net to force me to continue paying, or they are afraid that I will use the author's first draft for free. But what I want to say is that the level of the manuscript is really terrible,no one wants to use a terrible article. And I won't use this topic again because it seems meaningless.