The third. The words hound, grouse, poplar and stand are all nouns.
Answer:
the invention of photography would revolutionise culture and communication in the west forever. The British inventor Fox talbot produced his first successful image in 1834 without a camera, by placing objects onto paper brushed with light s native silver chloride which he then exposed to sunlight..
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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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