air flow
Air flow
.They are tightly sealed from the outside.
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Modern homes are better sealed against the elements, and lack of air circulation from outdoors means that more air pollutants stay inside as they are generated.
They are tightly sealed from the outside.
air flow
ENERGY-EFFICIENT just took the quiz (apex)
- They are tightly sealed from the outside.
sight pollution is one kind of pollution by which our eye may be damage. in this part we may loss our seeing power, its effect on our thinking, effects on our mind. in modern age there are various type of sight pollution, like as various higher power lights in vehicles, various colors lights in shop, rough site of environment like shortage of green plant, etc.
Levels of carbon dioxide (CO2) in the atmosphere have increased rapidly since the beginning of the Industrial Revolution. Scientists agree that this is largely caused by burning fossil fuels (coal, oil and natural gas) in industry, transport and the generation of electricity.
Oxygen Levels were approximately 10% of what they are today. As photosynthesis only began in the Precambrian period the amount of carbon dioxide and oxygen in the atmosphere would be very small compared to modern times. In fact, human's probably wouldn't have been able to breath.
ENERGY-EFFICIENT just took the quiz (apex)
- They are tightly sealed from the outside.
sight pollution is one kind of pollution by which our eye may be damage. in this part we may loss our seeing power, its effect on our thinking, effects on our mind. in modern age there are various type of sight pollution, like as various higher power lights in vehicles, various colors lights in shop, rough site of environment like shortage of green plant, etc.
All kinds of pollution you can find on modern societies: water pollution, smog, noise and litter are some of them.
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The carbon dioxide (CO2) levels in the Cretaceous were 1,700 parts per million. That is 6 times the modern pre-industrial level (the amount of CO2 before the industrial revolution). The higher CO2 levels may have been partially responsible for the warm average temperature during the Cretaceous (4 C [7.6 F] above modern temperature).
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Modern development has be disturbed by pollution because it severely limits how industrial projects and applications can be completed without a severe impact on the environment. This can be witnessed first hand in China where fewer environmental laws are followed which result in massive amounts of pollution.
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Prehistroic animals (mainly insects hundreds of millions of years ago) were larger due to higher levels of oxygen in the atmosphere.
During the first period of the Mesozoic, the Triassic, there were less oxygen. However, through the Jurassic and Cretaceous, oxygen was higher than modern levels.
It has not helped us out it has helped us into it