The adjective of the word 'tax' is Taxable

adjective of word 'mouth' is Oral

Rise in temperature is the cause of global warming. The most pervasive climate effect is rapid escalation of ice melt.

Glance at= দৃষ্টিপাত করা, Glance over= দ্রুত নিরীক্ষন করা।,

অর্থ ক্ষতিকারক কোন কিছু কোন কিছু প্রতিহিত করা।

The noun form of the word "foolish" is "foolishness"

An unexperienced or immature person

The superlative degree of costly is costliest.

What is the superlative degree of the word "big is biggest.

what is the time by your watch?

What is the use of this statue?=  There is no use of this statue

(b) Answer: The writer believes that spending too much time in studies is sloth, meaning laziness or idleness. He suggests that while studies are valuable, overindulgence in them without applying the knowledge practically is unproductive and a waste of time.

Bacon wrote in his essay “Of Studies” that spend too much of time in studies is laziness or inactivity (sloth). Its mean that only study could not be fruitful without experience.

"River" is a common noun

The word knowledge is an abstract noun