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.
Nitrogen is essential for the growth of leaves and stems, and it helps to give plants a rich, green color. If it is lacking, plants will be pale and sickly-looking, and the oldest leaves will look worse than the newer ones.
Without the right nutrients and growing environment, your plants will grow poorly, and they can become susceptible to insects and diseases. There are three major nutrients that can limit the growth of your plants and a variety of conditions that your plants need to sustain healthy growth. The three nutrients that plants use in the greatest quantities are nitrogen, phosphorous and potassium. Soils that are deficient in these nutrients produce stunted plants that are more likely to suffer damage from diseases and insects. In most cases these elements are naturally present in sufficient quantities to support the growth of most plants.