GENERAL KNOWLEDGE

GK

ECOLOGY BIODIVERSITY CONSERVATION ENVIRONMENTAL ISSUES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Concentration of CO2 in present day atmosphere is
A
  220 ppm
B
  360 ppm
C
  280 ppm
D
  390 ppm
Explanation: 

Detailed explanation-1: -The current global average concentration of CO2 in the atmosphere is 421 ppm as of May 2022. This is an increase of 50% since the start of the Industrial Revolution, up from 280 ppm during the 10, 000 years prior to the mid-18th century. The increase is due to human activity.

Detailed explanation-2: -419.88 ppm This table presents the most up-to-date, daily average reading for atmospheric CO2 on the planet. Units = parts per million (ppm).

Detailed explanation-3: -Until the 20th century, it certainly hadn’t exceeded 300 ppm, let alone 400 ppm, for at least 800, 000 years. That’s how far back scientists have been able to measure CO2 directly in bubbles of ancient air trapped in Antarctic ice cores.

Detailed explanation-4: -On May 9, 2013, CO2 levels in the air reached the level of 400 parts per million (ppm). This is the first time in human history that this milestone has been passed. CO2 is the most important man-made greenhouse gas, which means (in a simple sense) that it acts like a blanket trapping heat near the surface of the Earth.

Detailed explanation-5: -The concentration of carbon dioxide in the atmosphere is 0.03 percent (300 parts per million). Plants can thrive well in this condition. Was this answer helpful?

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