Answer:
They are practicing what? You didn't finish writing out your question.
Explanation:
Answer:
Canada is colder because it is up North. It isn't as humid as it is in the south so it makes the air more dry and thin, making it colder. Where in the Amazon, it is warm and moist because it is by the equator and is near the tropics.
Explanation:
I hope this can help... I just answered with what I learned in science...
After reviewing the graph you have given with the question, there are several reasons why carbon 14 can't be used to accurately determine the age of organic remains that are 1 million years old.
A few of the reasons are; Carbon-14 has a short half life, after 1,000,000 years there wouldn't be enough carbon 14, and too little of the original radioactive sample would remain. Any of these choices are correct for the answer to the question you asked.
Im prerty sure it has something to do with the enconomy in the Usa