The correct answer for the question that is being presented above is this one: "oxygen became available from cyanobacteria." About 1.2 billion years ago, eukaryotic and multicelled organisms evolved because oxygen became available from cyanobacteria.
Answer:
Uso de vehículos eléctricos y evitar el uso de combustibles fósiles.
Explicación:
Para preservar los bajos niveles de contaminación y mejorar la calidad del aire alcanzada en la cuarentena, reduzca el uso de combustibles fósiles que se utilizan para la producción de energía, industrias y vehículos. Los vehículos producen la mayor cantidad de dispositivos de dióxido de carbono que causa la contaminación del aire. Durante el cierre, hay menos cantidad de contaminación porque hay menos vehículos en las carreteras. Deberíamos utilizar vehículos que funcionen con electricidad porque no produce contaminación y, por lo tanto, se mejorará la calidad del aire.
Answer:
The largest cities in Ouachita Mountain subdivisions are: Hot Springs and Mena (Polk County). Other smaller county’s include: Mount Ida (Montgomery County), Glenwood (Pike County), Jessieville (Garland County), and Caddo Gap (Montgomery County).
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The answer to the question is the total surface area increases and chemical composition changes. Consider the breakdown of rock into smaller pieces, these fragments vary from huge rocks to smaller sizes. As they are so crushed and broken they tend to occupy much of the surface area than when its just a huge rock.
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.
