The heat energy produced when the human body metabolises 1 gram of fat is A. 30 KJ B. 1 KJ C. 39 KJ D. 29 KJ

The correct answer is C. 39 KJ.

The heat energy produced when the human body metabolises 1 gram of fat is 39 KJ. This is because fat is a high-energy nutrient, and when it is broken down by the body, it releases a lot of energy. This energy is then used by the body for various functions, such as muscle movement, digestion, and brain function.

Option A is incorrect because it is too low. Option B is incorrect because it is too high. Option D is incorrect because it is not a valid option.

I hope this helps!