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Is the current oxygen content of the atmosphere lower higher or about the same as it was millions years ago?
Lower .
Is the current oxygen content of the atmosphere lower or higher or about the same as is was millions of years ago?
About the same. About a half billion years ago it was significantly higher, and more than a billion years ago it was lower, much lower. Before 1.5 or 2 billion years ago there was no free oxygen in the atmosphere, before 3 billion years ago there wasn't any.
What layer in the Earth's atmosphere holds the highest oxygen content?
The layer with the highest oxygen content in the Earth's atmosphere is the troposphere, which is the lowest layer where we live and where weather occurs. As you go higher in the atmosphere, the oxygen concentration decreases.
What was the composition in the atmosphere during the Mesozoic age?
During the Mesozoic era, which lasted from about 252 to 66 million years ago, the atmosphere was characterized by higher levels of carbon dioxide, approximately 1000 to 2000 ppm (parts per million) compared to current levels of around 400 ppm. Oxygen levels were also higher, ranging from 26% to 30% compared to the current 21%.
What are three ways the Earth is different today from when it was first formed?
The Earth's atmosphere has changed over time, with early Earth lacking oxygen while today it has a higher oxygen content. The planet's land mass has also shifted due to plate tectonics, leading to the formation of continents. Additionally, the Earth's surface has been shaped by erosion and weathering processes over millions of years.
Is the current oxygen content of the atmosphere lower higher or about the same as it was millions years ago?
Lower .
Is the oxygen content of the atmosphere lower higher or about the same as it was millions of years ago?
Lower .
Is the current oxygen content of the atmosphere lower or higher or about the same as is was millions of years ago?
About the same. About a half billion years ago it was significantly higher, and more than a billion years ago it was lower, much lower. Before 1.5 or 2 billion years ago there was no free oxygen in the atmosphere, before 3 billion years ago there wasn't any.
What layer in the Earth's atmosphere holds the highest oxygen content?
The layer with the highest oxygen content in the Earth's atmosphere is the troposphere, which is the lowest layer where we live and where weather occurs. As you go higher in the atmosphere, the oxygen concentration decreases.
Was oxygen higher in the past?
Yes, oxygen levels were higher in the past, particularly during the Carboniferous period around 300 million years ago. During this time, oxygen levels were around 35% compared to the current levels of around 21%.
Why does the atmosphere of Saturn appear to have only half the helium content of Jupiter?
Saturn's atmosphere appears to have half the helium content of Jupiter because Saturn has a lower overall density than Jupiter, leading to a greater proportion of hydrogen compared to helium in its atmosphere. Jupiter's higher density means that there is more helium present in its atmosphere compared to Saturn.
What is the maximum Water Vapour content in the atmosphere?
The maximum water vapor content that the atmosphere can hold varies with temperature, but under normal conditions, it does not exceed around 4% by volume. This maximum is known as the saturation vapor pressure and is higher in warmer air than in cooler air.
Why was there more oxygen in the air millions of years ago?
Millions of years ago, there was more oxygen in the atmosphere due to high levels of photosynthesis by ancient plants. These plants absorbed carbon dioxide and released oxygen as a byproduct, leading to higher oxygen concentrations in the air.
Does a basketball bounce higher in a colder atmosphere or in a warmer atmosphere?
Warmer atmosphere
Is a blood alcohol content of 0.11 percent higher than one of .16 percent?
no the higher the content the higher the number ..breath or blood
What did the atmosphere contain millions of years ago?
Depending on how far back, the atmosphere has changed. Around the cooling of the Earth, it would mostlikely contain large amounts of sulphur, methane and other volatile gases, coming straight from lava flows.
What was the composition in the atmosphere during the Mesozoic age?
During the Mesozoic era, which lasted from about 252 to 66 million years ago, the atmosphere was characterized by higher levels of carbon dioxide, approximately 1000 to 2000 ppm (parts per million) compared to current levels of around 400 ppm. Oxygen levels were also higher, ranging from 26% to 30% compared to the current 21%.
