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What was the first ever man made object to leave the earths atmosphere?
sputnik
What do scientist think was the source of the oxygen in earths atmosphere?
It came from primitive organisms early in earth's history. They were the first organisms to use photosynthesis to make food, by using light to convert Carbon dioxide and water into glucose (food) and oxygen. Since oxygen is a waste product of photosynthesis, it was released into the air. As more and more of these organisms multiplied, large amounts of oxygen were released into the air, forming today's atmosphere.
What is the trotosphere?
The Troposphere is a layer of the first layer of the atmosphere. It is about right above the clouds.
How did john glenn the first man to orbit the earth describe his reentry into earths atmosphere?
He described it by saying it was "a real fireball out there--a real fireball..."
What bacteria are thought to be responsible for establishing Earth's oxygen-rich atmosphere?
Cyanobacteria are believed to be responsible for establishing Earth's oxygen-rich atmosphere. Nearly 2.3 billion years ago, these microbes, which lived in the seas, were the first organisms to produce oxygen, leading to the transformation of the Earth's environment.
Which of these was the first source of oxygen in our atmosphere?
They were the oldest organisms called Stromatolites which did not need oxygen themselves but produced it by photosynthesis.
Earths first atmosphere contained little to no?
Oxygen. Earth's early(first) atmosphere is believed to contain hydrogen cyanide, carbon dioxide, carbon monoxide, nitrogen, hydrogen sulfide, and water. but still it only had little to no oxygen.
True or false there was a great deal of free oxygen in earths atmosphere before the first life forms developed?
false
What was Earths first atmosphere was created by?
The earths first atmosphere was created by the methane, carbon dioxide, sulphur oxides and water vapor that volcanoes were pumping out. Oxygen started to come in noticeable quantities once life had formed. Nitrogen is inert, so doesn't do anything.
Is a Cyanobacteria a aerobic or a anaerobic?
Cyanobacteria do not require oxygen. They are believed to have produced the first oxygen supply in the Earth's atmosphere, through the process of photosynthesis.
The first layer of the earths atmosphere touching earths surface?
mesosphere
The first layer of the earths atmosphere touching earths surf?
troposphere
What is earths atmosphere is primarily composed of?
the earth first atmosphere is troposphere
Earths atmosphere was first changed by?
photosynthesis
The first Indian Satellite aryabhatta was launched from?
the earths atmosphere
The first layer of earths atmosphere touching the earth?
troposphere
What are facts for oxygen?
Oxygen makes up only 21% of the air we breathe, but it is certainly the most important part, since we can't live without it.The Earth's atmosphere initially had very little oxygen; oxygen was added to the atmosphere by living things (anaerobic bacteria at first, plants later).The oxygen that we breathe now is produced by bacteria, algae and plants. It is estimated that 70 to 80% of the oxygen in the atmosphere comes from aquatic plants in the oceans.
