"Certainty about the knowledge intended in any activity comes from each student's re-creation of concepts ― and discussing, thinking, arguing, listening, and evaluating one's own preconceptions after the activities, under the leadership of a thoughtful teacher, can bring this about. After all, a food fight is a hands-on activity, but about all you would learn was something about the aerodynamics of flying mashed potatoes!" Q1. What does "this" here refer to? "Certainty" or "each student's re-creation of concepts"? Q.2. What does "about" mean here? "roughly" or "concerning"?

Examine the table of contents. table of contents fear and its physical effects mental effects emotional effects just say "no! " to breathing exercises meditation yoga free from living free seeking support staying sane index in which chapter would a reader find information on seeking support? fear and its effects free from fear just say "no! " to fear seeking support

When you wear your earbuds while working out, your sweat damages them and they die sooner

This excerpt is from “the poet” by alfred, lord tennyson. the poem describes a poet's consciousness and perception. which three lines suggest the richness of a poet's thoughts? thus truth was multiplied on truth, [the world like one great garden show'd,] and thro' the wreaths of floating dark upcurl'd, rare sunrise flow'd. [and freedom rear'd in that august sunrise] her beautiful bold brow, when rites and forms before his burning eyes melted like snow. [there was no blood upon her maiden robes] sunn'd by those orient skies; but round about the circles of the globes of her keen eyes and in her raiment's hem was traced in flame wisdom, a name to shake [all evil dreams of power--a sacred name.] and when she spake, [her words did gather thunder as they ran,] and as the lightning to the thunder which follows it, riving the spirit of man, making earth wonder, so was their meaning to her words. no sword of wrath her right arm whirl'd, [ but one poor poet's scroll, and with 'his' word] she shook the world.