0
The atmosphere has the same amount of oxygen today as it did 1000 years ago. Although oxygen gets used up in various ways, through fire and through metabolism, oxygen is constantly being released into the atmosphere by green plants.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
How does the atmosphere composition today compare with the air 1000 years ago?
1000 years ago the air was much the same as it is today, with a little less CO2 and a little less pollution.
Is there less oxygen in our atmosphere now than there was 20 years ago?
Yes. There is the exact same amount as 20 years ago, and well before that. The oxygen can not be created or destroyed, and can not leave the atmosphere... Therefore has the same amount.
How much water is there on earth today compared to 100 years ago?
there is still the same amount of water on earth as their was 100 years ago or in fact 1 million years ago. The fact is that today less water is in ice form then there was 100 years ago.
Is there really less oxygen at higher elevations?
Actually, the reason there isn't less oxygen at higher elevations. The reason it is harder to breathe is because the partial pressure of oxygen is much lower at higher elevations, preventing gas exchange of oxygen with the tissues in your body.
Why are oxygen masks nessesary when flying at high altitudes?
Oxygen masks are needed at higher altitude because the air is less dense, therefore less air molecules are getting into your lungs when you breath.
How does the atmosphere composition today compare with the air 1000 years ago?
1000 years ago the air was much the same as it is today, with a little less CO2 and a little less pollution.
What is less than a millennium?
A millennium is 1000 years; a century is 100 years; a decade is 10 years. Of course, anything less than 1000 years would reply to your question, for example, "997 years is less than a millennium".
How would such air be different from 3.6 billion years ago than the air you breathe today?
The air would be different because it would contain less oxygen than the air we breathe today
Why are some living things larger than others are?
It all depends on how much oxygen they can take in. For instance, when oxygen was supremely abundant millions of years ago, bugs were HUGE, but with less oxygen today, it would be harmful for bugs to grow that big outside of movies.
What is 1 less than 1000?
1000 - 1 = 999
Dose the earth have more or less water now than 1000 years ago?
l2watercycle noob
Write the numbers that are 1000 more and 1000 less in the number 576233?
1000 more is 577233 1000 less is 575233
What element is less dense selenium or oxygen?
Oxygen is less dense.
How much did gas cost five years ago?
Quite a bit less then today.
What number is 10 less than 1000?
10 less than 1000 = 1000 minus 10 = 990
What is 1000 less than 1416?
1000 less than 1416
Is there less oxygen in our atmosphere now than there was 20 years ago?
Yes. There is the exact same amount as 20 years ago, and well before that. The oxygen can not be created or destroyed, and can not leave the atmosphere... Therefore has the same amount.
