Which of the following best represents the average rate at which a person can quickly walk?

3 steps per hour
3 steps per second
30 steps per minute
30 steps per second

30 steps per minute

Explanation :

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.