nutrition is important because it leads to a healthy body, a healthy mindset, your diet can help you maintain a healthy mental state as well. healthy nutrition can impact your quality of life, when you follow a healthy diet you aren't just satisfying your body but your hunger but your body too.
A healthy diet throughout life promotes healthy pregnancy outcomes, supports normal growth, development and ageing, helps to maintain a healthy body weight, and reduces the risk of chronic disease leading to overall health and well-being.
The singular noun in this sentence would be the word "Sand" because it's talking about the "Hot sand". He walked across the hot "sand", hot is used to describe the word sand. Thus your answer.... B. sand. Hope this helps. :)
