An object is thrown upward from the top of an 80ft tower. the height h of the object after t seconds is represented by the quadratic equation h=-16t^2+64t+80. after how many seconds will the object hit the ground? a)29 seconds b)6.4 seconds c) 5.0 seconds d) 8.0 seconds

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.