Question
Write a short note on carbon cycle.
✓
Answer
Carbon cycle is a series of chemical reactions in which atmospheric carbon dioxide is used by the organisms and returned to the atmosphere. Photosynthetic plants use carbon as carbon dioxide from the air synthesizing organic compounds. By respiration, burning, decay, etc. the carbon is returned to the atmosphere.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Study the experimental setup in the figure and then answer the question that follow.
What will you observe in the setup after about half an hour? Give reasons for your answer.
What will you observe in the setup after about half an hour? Give reasons for your answer.
The diagram below represents a layer of epidermal cells showing a fully grown root hair. Study the diagram and answer the questions that follow: 
Mention one distinct difference between the parts labelled A and B.
Mention one distinct difference between the parts labelled A and B.
Differentiate between the following:
Toxins and Antitoxins
Toxins and Antitoxins
What is the law of limiting factors?
Mention the two principles through which Lamarck explained his ideas.
What forces are involved in the absorption of water from the soil by root hair?
Write about the excretory role of the lungs.
What is the difference between diffusion and osmosis?
Differentiate between the following
Turgor pressure and wall pressure
Turgor pressure and wall pressure
Explain the term Gametogenesis.