If this is supposed to be the entire sentence, then it should read: "The/These/Those components are also critical to problem solving and life success." If this is a part of a longer sentence, I would like to see it. If you want to change "also" to a different word, the word should be "are" because "components" is plural. Therefore, with "also" changed, the sentence would then read: "Components are critical to problem solving and life success." I hope my answer helps. Please let me know if you still have questions.

no problems. I am glad to have helped you. Casey

I do not know the complete sentence, I am learning attributive, this is what I see in the book example, grammar is not very understanding！！thank you

"The components are also.." whats the complete sentence?