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Answers
1. Nitrogen — 78 percent. Oxygen — 21 percent. Argon — 0.93 percent. Carbon dioxide — 0.04 percent
2.Air pollution is caused by solid and liquid particles and certain gases that are suspended in the air. These particles and gases can come from car and truck exhaust, factories, dust, pollen, mold spores, volcanoes and wildfires.
3.Petroleum is called liquid gold. ... It shows that the petroleum is as significant as gold and also tells us that it is as difficult as finding gold. Without petroleum world's economy would collapse. It is the main source of energy for transportation sector.
4.In politics, a political party is an organized group of people who have the same ideology, or who otherwise have the same political positions, and who field candidates for elections, in an attempt to get them elected and thereby implement their agenda.
5.This forestalls attempts to influence the voter by intimidation, blackmailing, and potential vote buying. This system is one means of achieving the goal of political privacy. Secret ballots are used in conjunction with various voting systems........I Hope its help...so please follow me....
Answer by
Kirandeep Kaur...