Milk is one of the best sources of calcium. Our bodies absorb 28 percent of the calcium found in milk, but as little as 5 percent of the calcium found in other foods like spinach.
Q: How much land is an acre?
A: An acre is a measure of area. It can be any shape as long as it equals 43,560 square feet. Engineers typically use 100,000 square feet for a city block, which is about 2 ¼ acres. An acre is about the same size as a football field.
