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Research is practical and realistic because it is based on the scientific method, which demands that research should be start with an hypothesis, that should be falsifiable (meaning that it can be proven right or wrong), followed by a scientific study in which the hypothesis is tested.
If the hypothesis is proven to be true, it does not mean that is conclusions will hold true for eternity, they could be proven wrong by further studies.
For this reason, research is both practica, because it is based on a practical method: the scientific method, and realistic, because it has a limited scope, and limited, verifiable understanding of reality, and can be proven wrong with other studies.
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Deforestation, and especially the destruction of rainforests, is a hugely significant contributor to climate change. Scientists estimate that forest loss and other changes to the use of land account for around 23% of current man-made CO2 emissions – which equates to 17% of the 100-year warming impact of all current greenhouse-gas emissions.
As children are taught at school, trees and other plants absorb CO2 from the air as they grow. Using energy from the sun, they turn the carbon captured from the CO2 molecules into building blocks for their trunks, branches and foliage. This is all part of the carbon cycle.
A mature forest doesn't necessarily absorb much more CO2 that it releases, however, because when each tree dies and either rots down or is burned, much of its stored carbon is released once again. In other words, in the context of climate change, the most important thing about mature forests is not that they reduce the amount of CO2 in the air but that they are huge reservoirs of stored carbon. If such a forest is burned or cleared then much of that carbon is released back into the atmosphere, adding to atmospheric CO2 levels.
Of course, the same process also works in reverse. If trees are planted where previously there weren't any, they will on soak up CO2 as they grow, reducing the amount of greenhouse gas in the atmosphere. It is thought that trees, plants and other land-based "carbon sinks" currently soak up more than a quarter of all the CO2 that humans add to the air each year – though that figure could change as the planet warms.
Unsurprisingly, the relationship between trees and local and global temperature is more complicated than the simple question of the greenhouse gases they absorb and emit. Forests have a major impact on local weather systems and can also affect the amount of sunlight absorbed by the planet: a new area of trees in a snowy region may create more warming than cooling overall by darkening the land surface and reducing the amount of sunlight reflected back to space.
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D: the battle of Saratoga... French
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The norm for standing distance between two friends during a conversation is about 3-6 feet in the United States, whereas it is only about 1-2 feet in Middle Eastern countries. This difference best reflects is a type of psychology:
Explanation:
- Sociocultural in psychology refer to the impact of surroundings and society on the culture of that society.
- In America, the population of people per area is less than that in Middle Eastern countries. There is more flux of people in an area in those countries so this condition has led to the norm that standing distance between two friends during a conversation is about 1-2 feet in Middle Eastern countries.
- Generally, you can see that the public places like shopping markets are crowded with people. The public transport is jam packed with people. So, they don't feel when someone is talking to them at a distance of 1-2 feet as people of the United States do.
