Photographs in the early 1800s took about 30 seconds to produce tru or false?

False??? Because it was way back then...

True - the typical exposure time was a variable between 15 to 40 seconds. This is because the plate was sensitized by iodine fumes. The time of the fuming was a variable. Depending of the quality of the camera lens and the brightness of the day  the exposure time was most likely at about 30 seconds.

i believe the correct answer is: must sculpture be beautiful to be considered art?

the aesthetics represents the exploring of beauty and taste of nature in art, with the creation and appreciation of beauty. having that in mind, i believe the appropriate aesthetic question you could ask about gianlorenzo bernini’s sculpture david is “must sculpture be beautiful to be considered art? ”.