Determining the weight of 100 CDs depends on whether only the CDs are weighed or if the CDs have sleeves or jewel cases. A single CD by itself weighs about 0.58 ounces. Therefore, 100 CDs by themselves weigh 58 ounces.
Plants and animals need nitrogen in order to make proteins. Proteins are essential compounds for healthy growth and fully functioning organisms. However, nitrogen is often in short supply to plants in both natural and agricultural systems. If nitrogen supply limits the growth of plants then the animals which feed on the plants will also suffer.
Nitrogen. Nitrogen is the N of NPK and applies to the first number listed on a fertilizer's label. Nitrogen gives plants a boost to produce leaves and new growth. On a cellular level, nitrogen provides much of plants' energy by being a component of proteins and chlorophyll. trip to a garden center will leave you facing shelves of fertilizer, or plant food, choices. Although they have different uses, each plant food should have the nitrogen, phosphorus and potassium (NPK) content on its label as a series of three numbers, such as 10-10-10.