Answer:
Explanation:
Oxygen is of no use to them, so they release it into the air. So there's a simple explanation for the Great Oxidation Event. It was the cyanobacteria, pumping out unwanted oxygen, that transformed Earth's atmosphere.
Answer:
Historical ties and official cooperation
Explanation:
Argentina took in many Nazi war criminals and members of the Nazi party after World War II in part because of the strong presence of German immigration in the South American country. Argentina had received many Germans in the decades prior to the war which helped the country stay close to Germany.
Argentina was also a neutral country during WWII and therefore had an impartial stance toward the warring parties, at least official. In reality, the Argentine government collaborated secretly with the Germans to help escapees leave Europe safely and reach safe haven in the Americas.
Answer: Megacities can influence environment and health concerns.
Explanation:
1. The megacities can pollute the environment by causing air, water, and soil pollution due to rapid industrialization in these cities leaking air pollution and chemical discharge in water and soil contaminating them. This way the environment is affected also the human and animals are prone to respiratory and digestive problems and diseases.
2. The megacities are source of noise pollution from different sources producing undesirable sound like vehicle honking, live concerts, and machines from industry and others these can affect the hearing ability of human and animals also can be responsible for hypertension, cardiac arrest, and stress in humans.
3. The megacities are affected by overpopulation which can affect the environment as resources like water, air, minerals will deplete from these cities and this can affect the survivor of human kind who are not able to meet the resource demand.
