The student realized that so many different people with different jobs are making efforts to prevent and limit pollution in order to protect our environment. Even farmers are finding ways to do this. The table below shows land use for different crops and the yield of each crop for a typical farmer. Crop-Yield (bushels/acre)
Soy beans-150
Sweet Potatoes-320
Wheat-50
Corn-155
The data in the graph shows the amount of water needed to grow four different crops, each used to produce ethanol, a fuel. For each crop, the data shows how many liters of water are needed to produce one liter of ethanol fuel.

Answer this question
In the provided graph, for each crop, the data shows how many liters of water are needed to produce one liter of ethanol fuel. Which of the following would require using the most water?

Producing 5L of ethanol from corn

Producing 4L of ethanol from sugar beet

Producing 2L of ethanol from potatoes

Producing 1L of ethanol from sugar cane

4.at 0 ºc, some amount of energy is required to change 1 kg of water from a solid into a liquid. if you had a 2 kg piece of ice, what effect would this have on the amount of thermal energy required to change the water from a solid to a liquid? it would require more energy to change solid water into liquid water because there are more molecules in this larger piece of ice. it would still require the same amount of energy to change solid water into liquid water because the entire piece of ice would still gain the same amount of energy in each case. it would require energy to be removed from the 2 kg piece of ice. the larger piece of ice already has more total energy than the smaller piece of ice, so energy must be removed for the ice to become liquid. it would require less energy to change solid water into liquid water because the energy would spread through the ice more quickly and the ice already has a larger total amount of energy because it is larger than a 1 kg piece of ice.