2 out of the three contain 4 calories but a gram of fat contains 9 grams so the answer would be false because the question is asking for all three to have 4 calories hope this helps.
An author's credentials can determine a health source's credibility. None of the other options would apply to credibility. When it comes to health, if you want to make sure that what you are researching or reading is authentic and reliable you need to find out whether the author is a professional health expert or not. You can do this by finding out their credentials.
I think it's called infectious agent or something close to that.
Secondary prevention aims to reduce the impact of a disease or injury that has already occurred. This is done by detecting and treating disease or injury as soon as possible to halt or slow its progress, encouraging personal strategies to prevent re injury or recurrence, and implementing programs to return people to their original health and function to prevent long-term problems.
