Function. A UPC code is a 12-digit number with the bar code comprised of 7-bit codes that represent each digit in the sequence.There are exactly 30 bars in the UPC code sequence, including the start and end bars.The UPC code is read by a digital scanner that allows it to interpret each of these bars and match it up with a database for speedy check out.here are exactly 30 bars in the UPC code sequence, including the start and end bars. The UPC code is read by a digital scanner that allows it to interpret each of these bars and match it up with a database for speedy check out.
The Sun is the primary source of energy for nearly all biological systems. Sunlight allows plants, algae and cyanobacteria to use photosynthesis to convert carbon dioxide and water into organic compounds like carbohydrates. This process is the fundamental source of organic material in the biosphere.
I need one main idea of why is solar energy important in our life, and 3 supporting ideas reinforce the main idea, please I need this for a project, worth 5 stars, thanks.Follow.est Answer: Source of solar energy is the sun and without the sun there would be no life. The sun provides the heat to keep this mudball thawed out. The sun provides the light for the photosynthesis needed by plants. The planet needs the plants for food and oxygen to support higher forms of life.