Carbon Cycle
Carbon Cycle
Carbon Cycle:
Carbon is the basic constituent of all living beings. Its organic compounds play a major role in our life as carbohydrates, fats, proteins and nucleic acids. Food, fibres (cotton, jute), medicines, fertilizers, fuels—all contain compounds of carbon. There are three main reservoirs of carbon:
(a) Atmosphere,
(b) Oceans, and
(c) Carbonate rock, coal and petroleum.
The atmosphere, in which carbon is present as carbon dioxide, serves as the main reservoir of carbon. Some carbon dioxide is also found dissolved in water. Carbon dioxide constitutes 0.03 per cent of the atmosphere. Most of the carbon dioxide enters the living world through the process of photosynthesis. The amount of carbon fixed by photosynthesis per year is to
kg. The process of photosynthesis takes place on land as well as in water. Carbon dioxide enters the producers by diffusion and is then utilized for photosynthesis.
Choose the correct the correct sequences: | |||
| Right Option : B | |||
| View Explanation |
Which of the following are correct : (a) Carbon dioxide returns to the atmosphere through respiration in plants and animals. (b) Carbon dioxide enters the producers by diffusion and is then utilized for photosynthesis. (c) The process of photosynthesis takes place on land as well as in water. | |||
| Right Option : D | |||
| View Explanation | |||
In which one of the following processes carbon dioxide is not released ? | |||
| Right Option : C | |||
| View Explanation | |||
Students / Parents Reviews [10]
About Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
