Based on your calculation for the rate of increase from 2006 to 2016, how long do you estimate it will take for the CO2 level to reach 450 ppm? How long to be 50% higher than the present level?
What will be an ideal response?
Given a 23 ppm increase from 2006 to 2016, CO2 levels should reach 450 ppm in 25 years.
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Which equation best describes the reaction represented in the illustration above?
A. 2 AB2 + 2 CDA3 + A2 ? 2 DBA4 + 2 CA2 B. 2 AB2 + 2 CDA3 + B2 ? 2 C2A4 + 2 DBA C. 2 AB2 + 2 DCB3 + B2 ? 2 DBA4 + 2 CA2 D. 2 BA2 + 2 CDA3 + A2 ? 2 DBA4 + 2 CA2
Zimbabwe, in southern Africa, falls into this landform region:
A) Chad basin B) deserts C) lowlands D) highlands
Storms typically form along the polar front. However, there are also storms that develop over polar water behind (or poleward of) the main polar front
a. True b. False
What will likely happen to this object in the future?
A. It will continue to consume its hydrogen through nuclear fusion and will emit electromagnetic radiation. B. It will continue to evolve with its stars going through their evolution. C. The ejected material could be disbursed, with the material remaining in proximity to it. D. It could evolve into a single star.