Los humanos como contaminamos nuestro medio ambiente

The three main types of pollution are air pollution, water pollution, and land pollution (air pollution being the most common). Examples on pollution are factories, cars, oil spills, and garbage just on roads. Humans cause pollution and the impact it has on the Earth.

the united states has a federal government. the president is the head of the federal government of the united states. however, each state forms its government for administration purposes. the powers of the state governments are exercised within restricted state boundaries. and citizens participate in this government by voting.

answer; exploratory;