For the quintessence of classical philosophy, see Aether (classical element). Boron is a chemical element with symbol B and atomic number 5. Produced entirely by cosmic ray spallation and supernovae and not by stellar nucleosynthesis, it is a low-abundance element in the Solar system and in the Earth's crust.
The weight of a polo shirt depends on the size and fabric. The  average weight for a men's short-sleeved polo shirt in size large  is about 8 ounces.1 person found this useful.ow much does a medium sized t-shirt weigh?   On average: Small: 6 oz. Medium: 6.5 oz Large: 7 oz X-Large 7.50 2X-Large 8.75 3X-Large 9.50 But it can vary depending on material.
How Much Do Lions Weigh. Male lions weigh between 330 and 550lb (150-250kg). Female lions weigh between 264 and 400lb (120-182kg). The average weight of male lions is 399lb (181kg) and the average weight of female lions is 278lb (126kg). The heaviest lion even found in the wild weighed in at 690lb (313kg).Lions vary in size and shape depending on the environment they are living in.This is why the weights listed above vary so much.ow Much Do Lions Weigh. Male lions weigh between 330 and 550lb (150-250kg). Female lions weigh between 264 and 400lb (120-182kg). The average weight of male lions is 399lb (181kg) and the average weight of female lions is 278lb (126kg). The heaviest lion even found in the wild weighed in at 690lb (313kg).