Mammals first appeared during the <span>Mesozoic </span>era.Hope I helped, good luck!'
Despite Mexico's excellent geographic advantages. Geography can have a profound influence on a country's economy. States that are landlocked are nautically disadvantaged in global trade compared to. They are well armed, organized, and they have begun to undermine the government.
There are many ocean currents that take warm water up to London, thus warming the air there.
The farmer wont be able to grow crops because the soil is not usable.
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.