About how many kcalories of fuel are used to produce 1 kcalorie of grain?
A)

Question

About how many kcalories of fuel are used to produce 1 kcalorie of grain? 
A) <1 
B) 5 
C) 10 
D) 10 .
E) 50

Quizplus · Accepted Answer

The production of grain involves various processes such as planting, cultivation, harvesting, transportation, and processing. Each of these processes requires energy in the form of fuel, but the amount of fuel used varies depending on the specific practices and technologies used. On average, it is estimated that less than 1 kcalorie of fuel is used to produce 1 kcalorie of grain. This is because plants are able to convert solar energy into chemical energy through photosynthesis, making them highly efficient at producing nutrient-dense food. Therefore, choice A is the best answer as it reflects the most accurate estimate of the energy efficiency of grain production.

About How Many Kcalories of Fuel Are Used to Produce