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How do scientists know how oxygen levels have changed over deep time?
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Why have scientists never dug a hole to the centre of earth?
Too deep
When does high altitude begin?
Not sure how high you mean, but if you mean high enough that you need oxygen, you're looking at 20,000 feet. Anything from 10,000 feet upwards (if you are mountain climbing) you still run the risk of altitude sickness as the levels of oxygen are very low, but you can combat this with slow and deep breathing, and don't push yourself too far.
Scientists study small pockets of air trapped deep within frozen glaciers. What are scientists trying to understand about the climate of Earth by analyzing these ice samples?
Changes in atmospheric gas composition
Why is the thermohaline circulation important?
Thermohaline circulation brings oxygen rich water to the deep ocean.
Fewer organisms live at the bottom of a deep lake because of the lack of what?
Because of lack of oxygen and sunlight.
Oxygen levels in the sea decrease with depth. how do deep sea divers get there oxygen?
plants
How deep will future models of Deep Flight take scientists?
Future models of Deep Flight may be able to carry scientists to 11,000 meters below the ocean's surface.
How many scientists have seen the deep ocean through Alvin's windows?
4,502 scientists have seen the deep ocean through Alvin"s windows.
Why is oxygen a survival challenge in the deep ocean?
There is hardly any oxygen available at low depths, thus making oxygen a survival challenge in the deep.
Why is it that humans can't survive in deep water without oxygen tank?
because oxygen is needed for cellular respiration and deep waterdoesnot contain oxygen
Is there any oxygen in the deep sea?
As there is oxygen in water (H2o o=oxygen) , if there is water there is oxygen, so yes.
How do think scientists collected new evidence about deep oceans?
They go underground and see what there if it is deep they can use a submarine
How do you think scientists collect new evidence about deep ocean?
They go underground and see what there if it is deep they can use a submarine
Is there more oxygen in shallow water then deep water?
No. There is more oxygen in deeper water.
Why have scientists never dug a hole to the centre of earth?
Too deep
What are soil levels made up of and how deep are they?
there is the organic layer which is the top most layer and its about 8cm deep
How have deep sea discoveries changed science?
By discovering new animals that have changed science :D
