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nekit [7.7K]
3 years ago
12

About 99% of the atmosphere is composed of

Biology
1 answer:
hichkok12 [17]3 years ago
5 0
Nitrogen and oxygen make up about 99%of the atmosphere. I'm not sure if it will help! But thats all I know.
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A period in 24-point font (.) is about 1mm in diameter. SARS-CoV-2 has a diameter of 80 nm. The prefix “milli” means 1000, which
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Answer:

Approximately 12,500 SARS-CoV-2 viruses

Explanation:

According to this question, the period described is 1mm in diameter. Since 1millimetre(mm) is 1000metre(m), this means that the period is 0.001m in diameter.

Also, the SARS-CoV-2 virus has a diameter of 80 nm (1nm = 10^9m).

Since 10^6nanometres (nm) or 1,000,000nm makes 1millimeter (mm), 80nm of the virus will be:

= 80/1,000,000

= 0.000080mm or 8 × 10^-5mm

To calculate how many of the SARS-CoV-2 virus will fit into the period, we divide the diameter of the period (in mm) by the diameter of the virus (in mm).

That is; 1 ÷ 8 × 10^-5

= 1/8 × 10^5

= 0.125 × 100,000

= 12,500

Therefore, approximately 12500 SARS-CoV-2 viruses will fit in the period.

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hope this helps! ❤ from peachimin

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