Tree rings are annual growth rings and their thickness indicates how growing conditions were for that year. Index fossils in their type and frequency are indicative of the environment that those organisms grew in and how prolific life was then in that environment. Ice cores drilled through glaciers and ice sheets like in Antarctica tell us about such things as the concentration of greenhouse gases like carbon dioxide (as bubbles in the ice layers) and also about climatic conditions in glacial and interglacial periods.
World War I and the role of women during that time had a big impact on the suffragist movement. The statement from the then president of United States of America that the war was for democracy give the final arms in the hands of the women. they demanded the right to vote as it was their democratic right.
Florence is remembered as the genesis of renaissance and wealth and wealth in cities uniqueness and architecture. During the middle ages, the city was wealthy of natural resources i.e. Marble quarries where building and sculptures were made.
During this period great thinkers, philosophers, artists, architects and political figures like Leonardo da Vinci, Donantello, Ghiberti.
<u>Answer:</u>
Napoleon made three heavy mistakes "in the Continental System, in the Peninsular War and in Russia's Attack".
<u>Explanation:</u>
The Napoleon's policy for preventing trade between Great Britain and continental Europe is called as "the Continental system " in order to destroy Great Britain's economy. But it raised severe economic strain to Europe and stressed relationship with the Europe leaders.
The Peninsular War proved to western powers that it was possible to defeat Napoleon and the French army. By depositing the Bourbons and stirring Spanish national sentiment, Napoleon provoked a strong opposition to his proposals, which would later lead to his defeat in Spain.
The most catastrophic mistake made by Napoleon was the invasion of Russia, as it demanded death of 500,000 soldiers of Napoleon and specially destroyed his ambiance of invincibility, which kept much of Europe self-satisfaction.