It is because all these three elements contain ionic properties and they have only one element in their outermost shell
Hearing loss that occurs as a function of age is called presbycusis.
In presbycusis, the patient will lose the ability to hear the higher frequency of sound.
Anosmia is losing the ability to smell. Presbyopia is vision loss that occurs as a function of age.
The rate and direction of reactions are greatly influenced by the Law of Mass action or molecular concentration because they relate to the same principle
I think at Approximately 7 years the child should be able to use each hand independently. Hand control is the ability by a child to accurately use and manipulate objects, utensils, tools and even finger in isolation for functional tsak performance.