Reading comprehension is the ability to read the text, process it & understand its meaning.
Reading skills are specific abilities which enables a reader to read the written form as meaningful language.
The purpose of reading is for pleasure, specific purpose or general.
Good reading skills enhance your vocabulary, pronunciation, your knowledge about everything & the ability of skimming & scanning.
Due to good reading skills you can retrieve the meaning of text in a better way.
Reading skills enhancement depends upon the level of grade & also the level of student's interest that how much he takes interest to improve these abilities.
The interest development is the 1st step in the journey of learning these skills.