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Process diagram: The nitrogen cycle

Bu process diagram topshirig‘ida overview uchun asosiy jihatlarni ajrating, hisobotingizni 20 daqiqalik taymer bilan yozing, so‘ng band 8 namunaviy javob bilan solishtiring.

WRITING TASK 1

Process diagram

You should spend about 20 minutes on this task.

The diagram below shows how nitrogen circulates through the air, soil and living things.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Write at least 150 words.

The nitrogen cycle
  1. 1Nitrogen fixationBacteria turn atmospheric nitrogen into ammonia
  2. 2NitrificationOther bacteria convert ammonia to nitrates
  3. 3Plant uptakeRoots absorb nitrates from the soil
  4. 4Animals eat plantsNitrogen passes to herbivores and predators
  5. 5Waste and deathExcretion and decay return nitrogen to the soil
  6. 6AmmonificationDecomposers release ammonia
  7. 7DenitrificationBacteria convert nitrates back into nitrogen gas

The cycle then repeats from stage 1.

Bu mashq savolini GoPrep imtihon uslubida yozgan. U rasmiy IELTS savoli emas.

Overview’da nima deyish kerak

Overview asosiy tendensiyalar yoki farqlarni bir-ikki gapda, raqamlarsiz aytadi. Kuchli javob ajratib ko‘rsatadigan jihatlar quyidagilar:

  1. 1Overall, the nitrogen cycle is a continuous process with seven stages, in which nitrogen moves between the air, the soil and living organisms.
  2. 2Bacteria convert nitrogen from the air into ammonia and then nitrates, which plants take up through their roots and pass to animals.
  3. 3When organisms die or excrete waste, decomposers release ammonia, and denitrifying bacteria convert nitrates back into nitrogen gas.

Vaqtga qarab yozing

Dastlabki bir necha daqiqada reja tuzing, keyin yozing.

20:00

0 so‘z (kamida 150)

Javobingiz faqat shu sahifada qoladi. Sahifadan chiqishdan oldin uni nusxalab oling.

Band 8 namunaviy javob

Avval o‘z javobingizni yozing, keyin solishtiring: namuna aynan shu savolga qanday javob beradi, har bir xatboshi qanday vazifani bajaradi va qaysi iboralarni o‘zingizga olishingiz mumkin.

Namunaviy javobni ko‘rsatish (170 so‘z)

The diagram shows how nitrogen circulates through the air, soil and living things in the nitrogen cycle.

Overall, the cycle has seven stages. Nitrogen from the air is made available to plants by bacteria, passes through animals, and is eventually returned to the atmosphere as nitrogen gas, so the cycle has no fixed beginning or end.

The cycle can be described as beginning with nitrogen fixation, in which atmospheric nitrogen is turned into ammonia by bacteria. Other bacteria then convert the ammonia into nitrates in a process called nitrification. These nitrates are absorbed from the soil by the roots of plants, which is known as plant uptake. When animals eat the plants, nitrogen is passed to herbivores and predators.

Nitrogen is returned to the soil in a different way. Through excretion and decay, waste and dead organisms release nitrogen. Decomposers then release ammonia in the stage of ammonification. Finally, bacteria convert nitrates back into nitrogen gas in denitrification, and the gas returns to the air, where the cycle starts again.

Foydali lug‘at

IboraMa’nosi
nitrogen fixationconversion of nitrogen gas into usable forms
ammoniaa nitrogen compound
nitratesnitrogen compounds absorbed by plants
decomposersorganisms that break down dead matter
excretionremoval of waste by organisms
be absorbed through rootsbe taken in by roots

Qo‘llanmalar

Shunga o‘xshash savollar

Barcha savollar: process diagram

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