The correct answer is - ozone.
The ozone is essentially three molecules of oxygen, or O³. This gas is crucial for the life on the Earth because it is the one that manages to filter out big portion of the UV radiation from the Sun which is extremely harmful if its too strong, as it will contribute to the dying out of pretty much every living organism.
While the ozone layer in the stratosphere is very useful, the ozone in the lower parts of the troposphere is actually considered as pollutant. The reason why it is considered as pollutant is because it is very harmful if inhaled, and it also heavily damages the plants.
The difference is that ethnicity is a socially defined category of people who identify with each other and culture is a range of humans that aren’t genetic inheritance.
I think the correct answer would be A. A normal cultural characteristic of rural areas would be having strong family values. Rural areas are areas where there are few homes and infrastructures and the distance for each buildings are more or less far from each other. This would mean that families tend to be more close to each since they are able to communicate to each other frequently.
1 is true
2 is also true
3 is false
False. groundwater can be found above the water table as well
