It teaches about the history of things and that might be useful for a job
Answer:
If you don't provide the right amount of light, your plants won't bloom and may ... Typically, a mini-cacti plant requires at least four hours of direct sunlight daily to thrive. ... How Much Light Does a Cactus Plant Need To Thrive? ... Therefore, the best approximation we have when it comes to light is to measure the duration.
Explanation:
President Kennedy was persuaded by MLKs i have a dream speech.
