With it, you can identify and locate constellations and stars. A typical star chart (see below) shows the relative positions of the stars and their brightness. Chart of Winter Sky. To use a star chart to identify stars and constellations, you must first find the one appropriate for the time of year you are observing.
Spinach leaves are an excellent source of vitamin-K. 100 g of fresh greens provides 402% of daily vitamin-K requirements. Vitamin-K plays a vital role in strengthening the bone mass by promoting osteoblastic activity in the bones.
Iron plays a central role in the function of red blood cells which help in transporting oxygen around the body, in energy production and DNA synthesis. Spinach is also an excellent source of vitamin K, vitamin A, vitamin C and folic acid as well as being a good source of manganese, magnesium, iron and vitamin B2. Vitamin K is important for maintaining bone health and it is difficult to find vegetables richer in vitamin K than spinach.