What is the meaning of insubordinate in the following
sentence?
The insubordinate child ran
free, wreaking havoc on the
school.
A. Insubordinate means to lower to
another level.
B. Insubordinate means to step up to the
next level.
C. Insubordinate means not curbed or
restrained.
D. Insubordinate means curbed or
restrained.

Acid rain is a secondary pollutant. select the best answer from the choices provided true or false

Skill check questions rearrange the paragraphs below into the correct sequence. that's because engineers on the ultraclean project have invented a self-cleaning, antibacterial metal surface that repels water with an intricate layer of laser-engraved valleys. when it rains, the lotus does not become damp; the water simply trickles off in fat droplets, taking any bugs and dirt with it. the drudgery may not be around much longer, however, if a team of italian scientists has anything to do with it “it's simply an amazing plant,” concluded professor luca romoli, leader of the project, “and we've succeeded in mimicking it. magnifico! ” few tasks in life hold less joy than scrubbing the ghost of somebody else’s porridge from a saucepan. the starting point for the research was the leaves of the lotus flower.

Is "they" an unstressed or stressed syllable?