Oxygen. Oxygen was a gas that was not part of earths atmosphere for a while. Hope I helped! :D
volcano blocks solar radiation and increase the temperature.
Answer: temperate, arctic tundra, tropical, arid desert.
Explanation: The overall climate in the United States of America (USA) is temperate, with notable exceptions. Alaska has an Arctic tundra climate, while Hawaii and South Florida have a tropical climate. The Great Plains are dry, flat and grassy, turning into arid desert in the far West.
Answer:
Explanation:
World War II was the first war that claimed the lives of more civilians than soldiers and witnessed the horror of the first systematic genocide in modern history with the Holocaust. In addition, many cities, towns and villages across Europe were completely destroyed by aerial bombing and heavy artillery.