1 but need to make it more clear
Explanation:
Chess helps prevent Alzheimer's
As the brain works like a muscle, it needs regular exercises for being healthy and avoid injuries. In fact, a medical study showed that playing chess decreases the risk of dementia, as well as prevents its symptoms because playing chess develops brain functioning
Is a lunatic and he is crazy for the horses
D. the more culturally diverse a group is the more comfortable it is with outsiders