Simple sentence _ I eat breakfast. Compound sentence_ I cook lunch for myself and save the rest for later. Complex sentence- I get ready to go shopping which is my hobby.
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The correct answer is:
Nitrogen is a key element in the formation of B. amino acids ,which are substances necessary to living organisms.
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The initial failure of the Hubble telescope resulted from a tiny aberration in the lens
The first answer is correct: "They suggest that the heat is stifling, giving the poem an oppressive mood".
The author begins the poem with the sentence cited above. The use of the expression "rend open" plus the use of the imperative mode, suggest some sort of desperation caused by the heat. That is why the author prays for wind (an unbeatable natural force) to come and defeat heat, ending the suffering.