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Stromatolites, which are layered structures formed by the activity of cyanobacteria, played a crucial role in Earth's history by releasing oxygen into the atmosphere through the process of photosynthesis. This significant increase in atmospheric oxygen, known as the Great Oxidation Event, occurred around 2.4 billion years ago and dramatically changed the planet's environment, paving the way for the evolution of aerobic (oxygen-using) life forms.
What else can I help you with?
Use in sentence on edge?
i banged intot the dfgdhfsfgscb
Where is the speed sensor and how do you change it?
well on a 93 exploirer the speed sensor plugs intot he back of the transfer case. dunno if that helps
The most extensive study of internal maps have involved animals that A. Hibernate B. Engage in thermoregulation C. Burrow extensive tunnels intot he ground D. Build nest E. migrate?
migrate
What were the differences in the north and south?
The difference between the north and the south is the north did not have slavery but the south had the bad slavery and all that broughnt it intot the north and everything went mixed up. The north had factories and the south had plantiations.
What are the elements of Renaissance art?
it looked to science to explain the world around them, and this also was an influensed intot he art. Da Vinci is a prime example of this becasue he used very detailed notes and drawlings to create his art work.
Why more rain in a low pressure area?
The low pressure causes are to rise intot he colder air above. Since cold air does not hold mositure very well, it condenses out and causes rain to fall. the lower the pressure, the more the rain
How do you fix a Jaguar XK8 2001 head light that has moisture inside?
A jaguar dealer or mechanic can put a hole intot he headlamp casing adn fit a T fitting... to create both an air vent and splash guard. This was a recall item, back in the day.
How do you play the mini game of freeze on poptropica wimpy wonderland?
First pour the freeze stuff into the cup. Then pour the cup into the dog bowl. Then tip the rest of the cup into the freeze bottle. Then pour the dog bowl intot he cup. Finally, pour the freeze bottle into the dog bowl.
What is the effect of volcanic dust and ash on the atmosphere?
Volcanic dust and ash in a moderate amount do not have a noticeable effect on global atmospheric conditions, however as evident after the 1991 Mt. Pinatubo eruption, a highly explosive eruption can cause cooling tends within the atmosphere. High amounts of ash and dust can reflect sunlight making it difficult for the light to reach the surface, another part of the eruption to consider is the amount of SO2 that is released intot he atmosphere, as it is the most efficient means of blocking sunlight from the surface. The Sulphur Dioxide binds with water molecules in the atmosphere creating a mirror effect and sending much more light back into space than ash and dust are capable of.
What were the political characteristics of north and south?
The South was more agricultural and less populated. The North was more industrialized and advanced and was heavily populated. The South also relied heavily on slavery and promoted it. Whilst the North did not need slavery and thought it was a horrible practice.
How do you delete your songs on your iphone but you don't want to restore it because that'll clear everything including apps?
At first i had this problem too :) when you plug your iPhone intot the computer, itunes should pop up. on the left side under "devices" it should say your iphone. click on that then ti will show eveything on your iphone. click on the heading "music". check off the music you want on the iphone (leaving the music you dont want unchecked), then sync. it worked for me, and hopefully it will work for you too!
How do hurricane winds differ from thunderstorm winds?
Most of the wind you experience in a thunderstorm is the result of rain-cooled air descending from the storm and spreading out at ground level. These winds are rather localized and periods of strong wind usually do not last very long. In a hurricane, the wind is the result of air being drawn toward the intense low pressure at the eye of the storm. As a consequence of Earth's rotation, these winds spiral around the storm's center before being drawn up intot he rain beands and eye wall. Strong winds in a hurricane cover an area hundreds of miles across and often persist for hours.
