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.
Nitrogen is one of the three primary nutrients required by plants in relatively large quantities and is necessary for healthy leaf growth. If it is deficient in the soil, or simply unobtainable by the plants, then your vegetables will suffer visible symptoms of nitrogen deficiency.