for better research go to under NOAA - Climate.gov
This is a short paraphrased summary of the article about ice cores in that website.
Answer: Researchers in labs may melt or crush bits of the ice core a little at a time, each deeper layer shows the time in the Earth's climate history. Tiny pieces of pollution, metals, radoiactive fallout, pebbles, sea salt, volcanic ash and even air bubbles all present important information that researchers can look for to track changes in the atmosphere's composition and temperature.
Hi there!
The answer is 3., but 1. is VERY close to the correct answer. 1. is incorrect, because the sun's rays do not slant, but the Earth does.
-AwesomeRepublic :)
Answer: North America, South America, Antarctica, Europe, Africa, Asia, Australia
Channel Tunnel, CN Tower, Empire State Building, Golden Gate Bridge, Itaipu Dam, North Sea Protection Works (Netherlands), Panama Canal. Hope this helps!
Answer:
loess
Explanation:
_Loess______is sediment that is as fine as talcum powder.
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