You need to upload pictures of the sources so we can see them :)
Answer:
C.
Explanation:
Hi, fellow AP Human Geographer. Basically, all that arithmetic density means the total number of people per unit of land area. Having said that, we can immediately eliminate A. because increasing the population would only increase the total number of ppl. per unit of land area. Next, B. B can work, theoretically; however, there is a better answer. Next, D. D. says limiting the number of farmers; while this will technically reduce the number of ppl. per unit of land area, again there is a better answer. Next, E. I'd say this is the toughest choice; however, by increasing the area of urban areas, it can end up attracting more people instead. Overall, the best answer would be C., limiting the size of the population.
A greenhouse works in a convection way, since sunlight is energy that flows through the greenhouse windows, it then hits a solid surface and turns into heat. Think of it like an convectional oven, the light of the 1100 watt light bulbs used in an electronic oven hits and bounces off the oven walls(which are a solid surface) and turns into heat in order to cook your food.
