how perspiration helps keep you cool on a hot day.?
Perspiration keep’s you cool on a hot day because your really steamy and sweaty. You have no energy or strength to move. Your sweat drys up from your skin taking a little bit of your body heat with it.
Is this good ?
Your explanation is partially correct. Perspiration, or sweating, is a natural process that helps regulate your body temperature on a hot day. When you are exposed to high temperatures, your body activates sweat glands located in your skin. As sweat evaporates from your skin's surface, it carries away heat energy from your body and cools you down.
To answer your question on whether this is good, perspiration is indeed a beneficial response. It helps maintain your body temperature at an optimal level, preventing overheating. Without sweat, your body wouldn't be able to cope with excessive heat, which could lead to heat stroke or other dangerous heat-related conditions.
So, in summary, perspiration is a natural cooling mechanism that allows your body to cool down and prevent overheating on hot days.