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Q: What year did they start measuring the amount of CO2 in the atmosphere?
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Is the amount of carbon entering the atmosphere every year decreasing or increasing?

Yes the amount of carbon is increasing .


What did Charles David Keeling discover by measuring carbon dioxide in the atmosphere?

Charles David Keeling discovered that: - the concentration of carbon dioxide in atmosphere has an important seasonal variation - after 1960 he discovered that the concentration of carbon dioxide in atmosphere increase year after year, caused very probable by anthropogenic activities


What is the formula to calculate annual percentage yield?

It is 100*(Amount at end of year / Amount at start of year - 1).


Burning these has increased the amount of carbon dioxide in the atmosphere?

Fossil fuel (oil and coal) consumption emits roughly 30 billion tons of CO2 into the atmosphere each year.


Is the Carbon dioxide changing by the same amount each year?

The current level of CO2 in our atmosphere is 390 parts per million. We are now releasing CO2 at astonishing rates into our atmosphere, so to answer your question no. More Carbon Dioxide is being put into our atmosphere each year. There is an average, but that has gone up in the past few decades.


What year was the pterodactyl last seen?

Impossible to say - as we didn't start measuring years until the Romans started their calendar only 2011 years ago.


What year did Years and Years start?

Skylab was launched on the14th May 1973 and re-entered Earth's atmosphere on the 11th July 1979.


What is the Difference between favourable and adverse variance?

At the start of fiscal period every organisation prepares budgets for the coming period and then use the same estimated budget at the end of fiscal year to evaluate the performence in the fiscal year. When actuall amount for any activity is utilized less then the budgeted amount estimated for the same activity at the start of the fiscal year and perform the same activity accurately as estimated at start of period with less amount then it is called favourable variance and vice versa.


Which these is a term for measuring distance in space?

light-year(:


What is the most gas in are atmosphere?

"in our atmosphere" you 2 year old illiterate. and its Nitrogen


In what year did Nova Measuring Instruments Ltd - NVMI - have its IPO?

Nova Measuring Instruments Ltd. (NVMI) had its IPO in 2000.


How can I find the value of my old car?

A car's value depends on the year, make, and model as well as the amount of wear and tear on it. Blue Book should give you a base amount to start with.