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.
Why does the plant need phosphorus for? Phosphorus is essential for all living things as it is constituent of protoplasm. It is available to the plants in the form of Phosphates it is necessary to assist the transfe â¦ r of food around the plant and encourages healthy roots. Does Phosphorus help plants grow? it obviously only helps it make flowers!