Wind is plotted in increments of 5 knots (kts), with the outer end of the symbol pointing toward the direction from which the wind is blowing. The wind speed is determined by adding up the total of flags, lines, and half-lines, each of which have the following individual values: Flag: 50 kts. Line: 10 kts.
Save. Whether you bite into an apple, steak or dish of ice cream, youâre sure to get plenty of one type of element: carbon. Because carbon is present in all known forms of life, every food we eat contains carbon. Carbon is unique in its ability to form large, diverse molecules because of the way it forms electronic bonds with other atoms. The chemical bonds carbon forms allow it to form long molecular chains essential to life as we know it.
Carbon is a Group 14 element and is distributed very widely in nature. It is found in  abundance in the sun, stars, comets, and atmospheres of most planets. Carbon is present as carbon dioxide in the atmosphere and dissolved in all natural waters. It is a component of rocks as carbonates of calcium (limestone), magnesium, and iron. The atmosphere of Mars is very thin but what there is contains about 95 % CO2.