The scientists measured the amount of carbon dioxide in the atmosphere for dates prior to 1955, From air bubbles in glacial ice cores.
Almost 412 parts per million (ppm) of carbon dioxide are currently present in the Earth's atmosphere, and that number is increasing. This indicates an 11 per cent increase since 2000, when the concentration was close to 370 ppm, and a 47 per cent increase since the start of the Industrial Age when the concentration was close to 280 ppm. Most of the time, scientists do not consider Carbon dioxide as a percentage of the earth's atmosphere. It helps to picture a million equal pieces of an atmospheric gas sample.
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Answer: Surface water is replaced by the <u>water</u> cycle.
Explanation: The water cycle is a cycle that describes the movement of water.
44/5 seconds to g<span>o from a complete stop to 44 km/h</span>
Answer: 35.3m (3sigfig)
Explanation:
I would use the equation wave speed= frequency x wavelength
Rearrange to get wavelength=wave speed/ frequency
Plug in your numbers and that's the answer you get
Hope this helps :)
The number of "wah"s every second is the difference between the frequencies of the tuning fork and the note he is playing.