I don’t know why they make everyone type more than 20 characters but B sounds like the most reasonable answer.
It's used as a Climate classification system.
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The electromagnetic spectrum is a range of electromagnetic waves, in order of increasing wavelength/decreasing frequency
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Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.
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yup I heard about it in science
