Pick up a piece of paper and release it. Watch it fall. Now crumple this sheet and release it again. How has the nature of its fall changed?

when the unfolded sheet falls, gravity and a fairly significant force of air resistance act on it, slightly less than the force of gravity.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.