Asia.1:high population.2:high population=lots of people using cars and spreading fumes into the air.
Human activities.
The burning of fossil fuels is the most significant contributor to air pollution. Air pollution leads to things such as acid rain.
Air and water pollution
Nuclear waste pollution can cause people and animals to suffer and most likely die from its poisons
The most significant cause in the Civil War was unfair taxation, states' rights and slavery.
bubble gum
desease and pollution
water
China and second one is USA
Most human activities cause air or water pollution.
Most likely all but Antarctica, as there has yet to be significant human impact on the continent.
The most significant result of Amerigo Vespucci was the discovery of the continent of what was later to be named America. Prior to this time, Europeans had been unaware of this large land area.