A way that trade barriers can affect you as a customer is by raising prices of the protected good and hurt foreign producers of the good who wish to export to the country.
The answer is C. Law of original horizontality.
sedimentary layers are laid down horizontally when they're initially deposited.
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.
