Suppose the mass of a dog is 90 pounds. If 1 kilogram is equal to 2.2 pounds, what is the mass of the dog in kilograms? How many 10 oz bags equal 500 pounds? How much does 125 ml of water weigh in grams? The mass of the Sun is about 2 \times 10^{27} ...
A paper (Pimental et al 2005) last year in Bioscience took such an approach and concluded that animal manure could replace fertilizer with no loss of productivity. They used 5.6 metric tons two years out of five, so that averages out to 2.24 tons per year. So, how many cows are ...
In a previous article, we noted some of the differences between the two main categories of commodities: the hard and soft commodities. Here, we will go a bit more in-depth and look at some of the most commonly traded food commodities. As a whole, this section of the market is relatively...