yes
you die
yes water can be good and bad for you because if you are not careful enough there still might be some toxic and bad chemicals in it.
good effect: keeps hair in place bad effect: chemicals that are in it
Petroleum is good, as it can be cracked and polymerised into other use full chemicals, it is bad because drilling from the ground is expensive.
solutions
A "CreepMaster" is someone that would be classified as a creeper or a stalker and is very good (bad) at it.
caffine, suger, and lots of other stuff
Amphetamines are not necessarily bad, but people certainly use them improperly sometimes and that can have bad consequences. There are billions of known chemicals, some have medicinal value (chemicals we call medicines). Some chemicals have little medical value, but people like to use them, these chemicals are called drugs. Much like a hammer can be used to build a house (good), or kill someone (bad) its what a person DOES with the hammer that makes the distinction. A hammer is neither good nor bad. The same can be said of chemicals. If used properly, they can alleviate pain, cure infection, destroy a cancer, while in the wrong hands, some chemicals can cause addition, bad behaviour and even death. It depends on how it is used.
neither. all clothing styles have there pluses and minuses (goth is HOT in the summer!) but few could be classified as only good or only bad.
The education system is average and cannot be classified as either good or bad. There are positive as well as negative aspects of the Indian education system.
Gasoline is good for cars and bad for drinking. Lots of people inhale the chemicals and are sent to a vet because they could show characteristics of an animal
If you mean the technique of becoming dependent on petroleum based chemicals in the soil and on plants, the answer is BAD.