Between 1960 and 2010 the concentration of co2 in the atmosphere increased by

1 answer:

5 0

Currently, humans are emitting around 29 billion tonnes of carbon dioxide<span> into the atmosphere per year. Around 43% remains in the atmosphere - this is called the 'airborne fraction'. The rest is absorbed by vegetation and the oceans. While there are questions over how much the airborne fraction is increasing, it is clear that the total amount of CO2 in the atmosphere is increasing dramatically. Current CO2 levels are the highest in 15 million years.</span>

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Science Grade 8

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By using a genetic diagram or a punnett square, we can show the the result of a cross between RR and rr.
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The picture above is an example of using a punnett square finding the possible genotypes of the offsprings.