A microbial population declines from 1×10⁸CFU/mL to 1×10⁴CFU/mL in 30 minutes during thermal processing. Assuming first-order death kinetics, calculate the decimal reduction time (D-value) in minutes.

(Use: 𝑁=𝑁₀×10^{−𝑡 / 𝐷})

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Which cube can be formed by folding the given shape?

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#Question id: 16841

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Which of these images is the top view of the given object?

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#Question id: 16842

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Bolt from the blue

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#Question id: 16843

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Blue blood

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At Loggerheads

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#Question id: 16845

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