Confidence votes 36. calcium is usually found under rocks and in bones and muscles In nature, calcium is found in rocks, chalk, and seashells. It is found in the bones, muscles, and nerves of animals and in many different plants.In the food you eat, there is a lot of calcium in milk and other dairy products.There is also a good deal of calcium in green leafy vegetables like spinach. Some foods like orange juice are frequently supplemented with calcium too.t is found in the bones, muscles, and nerves of animals and in many different plants. In the food you eat, there is a lot of calcium in milk and other dairy products. There is also a good deal of calcium in green leafy vegetables like spinach. Some foods like orange juice are frequently supplemented with calcium too.
View Full Document. 1  The incremental costs would be defined as the costs that are added by the additional pairs of shoes that the company is going to add to the production as well as the machine costs associated with them. 200 Shoes added to production = 20 + 0.16 X 200 = 23.2 + 2000 (Equipment Costs) = 2023.2 c.
The Definition of Variable Costs. Variable expenses represent those daily spending decisions like eating at a restaurant, buying clothes, drinking Starbucks, and playing a round of golf with your buddies. These costs are not considered variable because theyâre discretionary. Rather, they're variable because the amount that you spend differs from month-to-month. While most variable costs represent discretionary spending (such as restaurants, Starbucks, and golf), some variable costs represent necessities.