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.
Just like you, plants need food to grow! But what is plant food, and how do plants get it? Plants turn water and air into food. Water from the ground is sucked up by the roots. Carbon dioxide from the air is breathed in by the leaves. Energy from the sun is collected by the leaves. The energy is used to turn the water and carbon dioxide into food. The waste from making plant food is oxygen. Animals, humans included, need oxygen to survive. So, this process is very important for plants AND animals. This amazing process, of using the sun's energy to make food, is called photosynthesis. Did you enjoy learning about plant food?