The farm machinery that does not have the heat engine is? By: Sunday|Published on: Jun 9|Categories: Agricultural Science WAEC| 0 comments A. tractor B. bulldozer C. mower D. combined drill Correct Answer: Option D – combined drill Users Also Read These:To keep a vehicle moving at a constant speed V…SS 1 Second Term Agricultural Science Lesson Note -…Which of the following is not a sign of heat in farm…The most appropriate farm machinery for breaking…An immersion heater rated 400W, 220V is used to heat…SEE ALSO Â Which of the following mineral elements is essential for chlorophyll formation?