Вопрос № 1054930 - Экология

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Large cities with thousands of smoky industrial enterprises pollute the air we breathe and the water we drink. Every year world industry pollutes the atmosphere with about 1,000 million tons of dust and other harmful substances. Many cities suffer from smog. Beautiful old forests disappear forever. Their disappearance upsets the oxygen balance. As a result some rare species of animals, birds, fish and plants disappear forever, a number of lakes and rivers dry up.

Прочитайте текст и определите, какой из заголовков соответствует тексту
Large cities with thousands of smoky industrial enterprises appear all over the world today. The by-products of their activity pollute the air we breathe, the water we drink, the land we grow grain and vegetables on.
Every year world industry pollutes the atmosphere with about 1000 million tons of dust and other harmful substances. Many cities suffer from smog. Vast forests are cut and burn in fire. Their disappearance upsets the oxygen balance. As a result some rare species of animals, birds, fish and plants disappear forever, a number of rivers and lakes dry up.

Megalopolis is the largest form of settlement, established when merging several urban complexes (as it is shown in the picture). The largest megalopolises of the word with population over 20 million people are …

The trophic structure of ecosystems contains ______ and ______ layers

To keep biodiversity in agricultural eosystems (as it is shown in the picture) the following must be applied:

The factors of internal environment consistence providing the life of animals in extreme cold conditions are as follows: