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 need nitrates to develop green leaves. Nitrogen, potassium and phosphorus are the three major nutrients plants need to grow successfully. In particular, nitrogen is responsible for foliage development. Plants use nitrogen in the form of nitrates, which is nitrogen mixed with oxygen. They usually absorb nitrates from the soil.
What role does nitrogen play in plant growth and yield? Nitrogen occurs in the chlorophyll of plants and is responsible for vegetative. growth. The leaves of plants that receive sufficient nitrogen have a dark, blue-green colour, which promotes photosynthesis. Photosynthesis is the process by which light energy is intercepted by plants. and stored in the form of starches and sugars.