Which is TRUE of the amount of CO₂ in our atmosphere?

Question

Quizplus · Accepted Answer

According to NASA's Global Climate Change website, "Carbon dioxide concentrations in the atmosphere have been increasing at a rate of about 0.5% per year, on average, over the past 60 years (1959-2019). However, the rate of increase has been higher recently as shown in Table 2 below: 1.1% per year from 1990 to 1999, 1.6% per year from 2000 to 2009, and 2.3% per year from 2010 to 2019." Therefore, option A is true as it states the correct rate of increase for CO2 levels between 1990 and 1999. The other options are incorrect as CO2 levels have been increasing since at least 1959, CO2 is not the most abundant gas in the atmosphere (nitrogen is), and the level of CO2 has not been higher during the past 800,000 years.

Which Is TRUE of the Amount of CO2 in Our

Which Is TRUE of the Amount of CO₂ in Our