A green pigment(chlorophyll) is present in the leaf to increase  light absorption ad thus rate of photosynthesis increases.    4. The leaf has large networks of vascular bundles to richly supply  the leaf with water(xylem) and transport food to other parts of the  plant(phloem).he Chlorophyll is in the top palisade layer closer to the light so it can absorb lots of light energy for photosynthesis. The upper epidermis is also transparent which also helps the light to reach the chlorophyll. + 17 others found this useful.
According to the THX standard, a 50 TV is optimally viewed from 6 to 7 feet away. A 60. TV is optimal at almost 8 feet. 70 is recommended at almost 10 feet and 80 and up even further. You start getting any bigger with your TV screen size and you might not have the space for your couch to go back far enough.
This means that a 60-inch TV has a screen width of 52 inches and a screen height of 29 inches. The bezel on flat screen TVs doesnât hide much of the screen and the frame is narrow. A 60-inch TV might measure 54 by 32 inches. Using these factors lets you calculate what size of TV fits into your room.ld TVs had an aspect ratio, which is the ratio of width to height, of 4:3. Newer TVs are called âwide screenâ and are designed to fit movies and videos that play on screens with an aspect ratio of 16:9. This means that the screen of an old 30-inch TV was 24 inches wide and 18 inches high.