What effect is keats most likely trying to achieve with his rhyme scheme? rhyming "fruitfulness" and "bless" suggests a need for religion during the autumn harvest. rhyming "sun" and "run" issues a warning about how dangerous autumn can be. rhyming "fruitfulness" and "bless" emphasizes the positive aspects of autumn. rhyming "sun" and "run" stresses the importance of spending time outside in autumn.?