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.
Variable costs are costs that change in proportion to the good or service that a business produces. Variable costs are also the sum of marginal costs over all units produced. They can also be considered normal costs.Fixed costs and variable costs make up the two components of total cost.Direct costs, however, are costs that can easily be associated with a particular cost object. However, not all variable costs are direct costs.ariable costs are costs that change in proportion to the good or service that a business produces. Variable costs are also the sum of marginal costs over all units produced. They can also be considered normal costs.