2.6% in U.S.A and 0.9% in Canada.
Statistics can be found on Wikipedia. Organic Foods - Facts and Statistics with links to all the sources.
the statistic that you are after is unclear: please re-phrase.
Please be more specifical, and stuff.
One difficulty is varying definitions of urban areas across countries, making comparisons less accurate. Additionally, differences in data collection methods and accuracy can affect the reliability of comparisons. Finally, cultural and socioeconomic factors can influence people's perceptions of what constitutes an urban area, further complicating comparisons.
Please be more specific!!
This question cannot be answered in the given context. Please provide more information about what you are trying to find out.
Keratins are a class of organic substances; please name a keratin.
Organic compounds need contain only one element, carbon. Please see the link.
Maple sugar is almost pure sugar. Sugars are organic compounds. Please see the link.
Divide the 4 billion by 64 billion, and multiply the result by 100 to convert it into a percentage. Please note that currently (as of 2012) there aren't that many people on Earth.
This question cannot be answered the way it is written. Please be more specific. Please rephrase and resubmit your question so it can be answered.
There are many, including DNA and RNA. Please see the link.
please advise the average percentage of manufacturing costs