Sometimes together, sometimes separately. You need to know the rules.
With short adjectives Not always written separately: "He's not bad." With full ones - sometimes together, sometimes separately, you need to know the rules. Let's figure it out.
When can be replaced with a synonym, that is, a word similar in meaning. Please note that this synonym should not contain the "not" particle.
If the adjective is not used without not. That is, you cannot just take the prefix not - just like that and discard:
If there is an opposition with the union "a", and the same sign is opposed, which is denied. Schoolchildren are always dumb here, see examples:
Not written separately when it negates the feature. In the first case, I want to say that the swamp is “not big, but small,” that is, I deny the sign of “large”.
In the second case, there is no negation. I attribute two characteristics to the swamp: it is "small" + it is full of frogs.
The environmental problems of the Belgorod region are created by several harmful industrial industries in the region, some of which are located in municipalities. A striking example is the city of Stary Oskol. In the south-west of this settlement, there are the harmful Lebedinsky and Stoilensky iron ore quarries. According to the criteria existing in Russia today, the city should officially be classified as a zone in which a critical ecological situation is observed.
If we generally assess the environmental problems of the Belgorod region, then the natural features that have a direct impact on the ecological state of the region include several factors.
Firstly, this is the location within the Voronezh anteclise. In this area, the basement (Precambrian) is as close as possible to the surface. This feature allows the discovery of large-scale mining, which are concentrated in the crystalline basement of this platform. This is the reason for the technogenic impact, which is associated with the extraction of minerals.
Secondly, even if speaking very briefly, the ecological problems of the Belgorod region are associated with its geographical position on the southwestern slope of the Central Russian Upland. Subject to the presence of sedimentary rocks around, as well as due to the openness of the terrain and low forest cover, strong soil erosion occurs, organic and mineral substances are carried to the surface. All these components, ultimately, upset the ecological balance in the region.
Thirdly, the peculiarities in atmospheric circulation play a role. In winter, easterly winds prevail, while in summer, westerly and northwestern winds prevail. All this leads to air pollution, which occurs not only due to its own sources, but also due to substances coming from the countries of near and far abroad.
The water resources of the region somewhat brighten the situation. The region is located on the Russian Plain, in that part of the watershed, which is almost completely protected from the penetration of pollutants by water. True, this also has a downside. In the region, the rivers are very shallow, so the regime of water protection zones is regularly violated, and low forest cover leads to the siltation of many reservoirs and river beds.
Another factor influencing the ecological problems of the Belgorod region is its location in the zones of steppes and forest-steppes, in which chernozem soils are widespread. They trap radionuclides and other contaminants. And this leads to the accumulation of harmful and polluting substances.
Environmental problems of Stary Oskol