Outdoor CO2 levels are frequently as low as 400 ppm, whereas interior CO2 levels typically vary from 420 to 1000 ppm. CO2 values under 1000 ppm are considered healthy levels. The best way is to open all the windows of classroom.
What are the health risk of high CO₂ level?
- People may have moderate symptoms like sleepiness, restlessness, an accelerated heart rate, and breathing difficulties if levels exceed 1000 ppm.
- This is particularly problematic in educational settings when learning new material calls for increased focus and attention from students.
- In addition to causing significant discomfort, levels of CO2 above 2000 ppm prevent pupils from functioning at their best in class and, over time, impair the growth of their cognitive abilities.
- In addition to the above described symptoms, there are others including nausea, poor focus, and feeling stifled.
- Indoor CO2 levels are normally below 1000 ppm, but if there are more than 20 pupils and teachers in a closed space, the CO2 levels will naturally rise, and it is not unusual for them to exceed 3000 ppm.
Learn more about the Global warming with the help of the given link:
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<span>The water plants
contain DDT or dichlor-diphenyl-tricloroehane was developed in the 1940s as an
insecticide. Because of its availability, it is inexpensive, has a high rate of
longevity and can readily be produced that is why it is mostly used as the main
ingredient. However, the manufacturing of this product has stopped due to the effects
that it has on humans and other organisms. It can accumulate in plants and can
destroy fatty tissues in organisms.</span>
1. <span>The codons that signal the end of a polypeptide chain are called terminators. The correct option among all the options given is the fourth option or option "4".
2. "</span>A dehydration reaction forms a peptide bond." is the one among the following that <span>occurs after a codon and anticodon form hydrogen bonds. The correct option is the third option or option "3".
3. </span>If cysteine is specified by the codons UGC and UGU, the anticodons present on tRNAs that carry cysteine are <span>ACG and ACA. The correct option among the options given is the fourth option or option "4".</span>
Dehydration reaction I believe! Sorry if this is wrong. But have a good day!
Answer:
Carolus Linnaeus (or Carl von Linné) was born on May 23 1707, and died on January 10 1778. He was a Swedish scientist who laid the foundations for the modern scheme of taxonomy. ... While in the Netherlands he met Jan Frederik Gronovius and showed him a draft of his work on taxonomy, the Systema Naturae .
Explanation: