0
Add your answer:
Earn +20 pts
Why is earths atmosphere helpful?
The Earth's atmosphere is helpful because without it we could not breathe and therefore could not exist.
Glacial periods are caused by?
progressive cooling of earths surface. earths heat balance could change as orbit alters.solar radiation fluctuations, periodic changes in earth tilt and orbit. loss of heat from earths surface through reduction of carbon dioxide content of atmosphere. volcanic eruptions, short term cooling of globe could increase effect if lots erupted over longer periods of time. volcanoes and climate, the little ice age 1645-1715.
In what field do scientists study the processes that change earths composition?
I think that it's geochemistry, but I could be wrong.
What did scientists hypothesize about earths early atmosphere and the way the ocean was formed?
The first ever atmosphere was hydrogen and helium (they call this the primary atmosphere) because these elements are light they were knocked off due to solar storms (charged particles from the sun) The dense rocks that formed the and the vast temperatures beneath caused many volcanic erupts which spat out carbon monoxide, carbon dioxide, ammonia, hydrogen sulphide, methane and water vapour forming the secondary atmosphere, these heavier elements did not get "knocked" off by solar storms. As the surface of the earth began to cool the water vapour in the atmosphere condensed into perciperation(rain) which ultimately over-time continued to cool the earths surface and make the oceans in the depressions in the earths surface. The oceans are salty because they erode away at the rocks and other elements beneath the surface. The ocean and rain began to dissolve the ammonia and carbon dioxide in the atmosphere, ultraviolet light shining through the earths atmosphere also broke down water molecules into hydrogen and oxygen and broke remaining ammonia that (in effect is too high) to be dissolved by the ocean into nitrogen and hydrogen. The combination of nitrogen, hydrogen, oxygen (and of course other small amounts of other elements) is what are atmosphere is now made of. Makes you wonder what could happen to change our atmosphere in the future, let's hope not too dramatically so we have atleast some time to evolve? :p
What are 2 main reasons air pressure changes?
In the atmosphere a storm could make it change, or if there is a hole in whatever is holding the air in :)
Why is earths atmosphere helpful?
The Earth's atmosphere is helpful because without it we could not breathe and therefore could not exist.
Meaning of caprice of nature?
The word "caprice" means a sudden change, so "caprice of nature" means a sudden change in some natural phenomenon. It could be a sudden thunderstorm, an earthquake, or a sudden change in the temperature.
What happens if the earths crust moves suddley along a fault?
The sudden movement could result in an earthquake.
Is oxygen found outside earths atmosphere?
Yes. Earth's atmosphere is about 21% oxygen. Without it, the vast majority of life we see, including humans, could not exist.
What event could take place to cause a sudden change in the desert?
an ice age
What could happen to earths surface if there was a change in the water cycle?
There could be change in the content of water. It will affect the level of water in the water bodies.
Could Uneven heating of air in earths atmosphere can cause convection to occur?
Yes, that's the basic cause of convection.
Why is ozone a necessary componet of earths atmosphere?
Ozone is a vital component of earth's atmosphere. It is because it saves us from the harmful UV radiations of the sun which could cause various fatal problems.
Moon gravity vs earths gravity?
Moon gravity is less because the atmosphere and mass and the earths gravity is greater than the moon if you weight yourself in the earth and then you weighted yourself in the moon you would weight less in the moon you could actually float in the moon because of its atmosphere and mass
What are all signs of indicating sudden emotions?
Sudden emotions could be due to sudden stimuli. Sudden stimuli could be awaken in the society.
Sudden change of mind?
If you get a sudden change of mind with the person you are with:let them down gently so you dont hurt their feelings straight away and be polite when you break the news to them. If you get a sudden change of mind with a boy everybody thinks is a loser: it is safe to say that it is completely up to you. maybe you could change peoples mind about this boy if you really liked him. give the heart what it wants.
What change happened to the atmosphere that enabled us to live?
because it could help
