Question

Ответьте на 4 вопроса плиз! Благодаря растения в атмосфере присутствует ... а) Кислород б)почва в)уголь г)мел Остатки отмёрших растений образовали залежи кислорода, а раковины морских моллюсков- ... а)уголь б)почва) в)кислород г)мел Все живые организмы принимают участие в образовании .... а)Уголь б)почва в)кислород г)мел Помогите плиз!))))

Answer 1

1) а
2) г
3) в)))))))))))

Answer 2

1)Кислород
2)Уголь
3)Почва

Answer 3

The Presence of Oxygen in the Atmosphere

The presence of oxygen in the atmosphere is primarily due to the process of photosynthesis carried out by plants. During photosynthesis, plants use sunlight, water, and carbon dioxide to produce glucose and release oxygen as a byproduct. This process is crucial for maintaining the oxygen levels in the atmosphere, which is essential for the survival of most living organisms, including humans.

Answer: a) Oxygen

Formation of Oxygen Deposits and Marine Mollusk Shells

The remains of dead plants and other organic matter can accumulate over time and form deposits of carbon-rich substances, such as coal. These deposits are formed from the remains of plants that have undergone partial decomposition and have been subjected to high pressure and temperature over millions of years. Therefore, the remains of dead plants, including those from photosynthesis, can contribute to the formation of coal deposits.

On the other hand, the shells of marine mollusks, such as clams and oysters, are primarily composed of calcium carbonate. Calcium carbonate is obtained from the ocean water, which contains dissolved carbon dioxide. Marine mollusks extract the dissolved carbon dioxide from the water and use it to form their shells. Over time, the accumulation of these shells can contribute to the formation of limestone deposits.

Answer: a) Coal and c) Oxygen

Involvement of Living Organisms in the Formation of Various Substances

All living organisms play a role in the formation of various substances. For example:

- Plants are involved in the formation of organic matter through photosynthesis. They convert carbon dioxide from the atmosphere into glucose, which serves as a building block for other organic compounds. - Microorganisms play a crucial role in the decomposition of organic matter, breaking it down into simpler compounds and releasing nutrients back into the environment. This process contributes to the formation of fertile soil. - Marine organisms, such as coral reefs, contribute to the formation of calcium carbonate structures, which can eventually become limestone deposits. - Animals also play a role in the formation of substances. For example, some animals, like bees, contribute to the formation of honey through the collection and processing of nectar from flowers.

Therefore, all living organisms, in one way or another, participate in the formation of different substances.

Answer: a) Coal, b) Soil, c) Oxygen, and d) Limestone (or calcium carbonate)