question: Given the fact "summer is when a hemisphere is tilted towards the sun", what is the answer to "The warmest part of the year happens while"

answer: the hemisphere of that region is tilted towards from the sun


question: Given the fact "a plant requires photosynthesis to grow", what is the answer to "What requires photosynthesis to grow?"

answer: local flora


question: Given the fact "a simple machine requires mechanical energy to function", what is the answer to "What provides the energy to open a doorknob?"

answer: you


question: Given the fact "decomposition increases the amount of nutrients in the soil", what is the answer to "Decomposition"

answer:
adds to the components needed to sustain life in the soil