Class 7 Exam  >  Class 7 Questions  >  How does photosynthesis help to maintain the ... Start Learning for Free
How does photosynthesis help to maintain the percentage of oxygen and carbon dioxide in the atmosphere?
  • a)
    By giving off carbon dioxide and absorbing oxygen.
  • b)
    By giving off oxygen and absorbing carbon dioxide.
  • c)
    By releasing oxygen and carbon dioxide.
  • d)
    By absorbing oxygen and carbon dioxide.
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
How does photosynthesis help to maintain the percentage of oxygen and ...
During photosynthesis, carbon dioxide is used to prepare sugars and oxygen is released into the atmosphere. This helps to maintain the percentage of oxygen at around 21% and that of carbon dioxide at around 0.03% in the atmosphere.
This question is part of UPSC exam. View all Class 7 courses
Most Upvoted Answer
How does photosynthesis help to maintain the percentage of oxygen and ...
How photosynthesis helps maintain the percentage of oxygen and carbon dioxide in the atmosphere:
Phototsynthesis is a crucial process that helps in maintaining the balance of oxygen and carbon dioxide in the atmosphere. Let's understand how photosynthesis contributes to this balance:

Production of Oxygen:
- During photosynthesis, plants take in carbon dioxide from the atmosphere and water from the soil.
- With the help of sunlight, plants convert carbon dioxide and water into glucose and oxygen.
- The oxygen produced during photosynthesis is released into the atmosphere through tiny pores in the leaves called stomata.
- This process increases the percentage of oxygen in the atmosphere, which is essential for the survival of all aerobic organisms.

Consumption of Carbon Dioxide:
- As plants take in carbon dioxide for photosynthesis, they help in reducing the levels of this greenhouse gas in the atmosphere.
- By absorbing carbon dioxide, plants play a crucial role in regulating the amount of this gas that contributes to global warming.
- This process helps in maintaining the balance of carbon dioxide in the atmosphere, preventing its levels from rising to harmful levels.

Conclusion:
In conclusion, photosynthesis plays a vital role in maintaining the percentage of oxygen and carbon dioxide in the atmosphere. By releasing oxygen and absorbing carbon dioxide, plants help in creating a balance that is crucial for sustaining life on Earth.
Attention Class 7 Students!
To make sure you are not studying endlessly, EduRev has designed Class 7 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 7.
Explore Courses for Class 7 exam

Top Courses for Class 7

How does photosynthesis help to maintain the percentage of oxygen and carbon dioxide in the atmosphere?a)By giving off carbon dioxide and absorbing oxygen.b)By giving off oxygen and absorbing carbon dioxide.c)By releasing oxygen and carbon dioxide.d)By absorbing oxygen and carbon dioxide.Correct answer is option 'B'. Can you explain this answer?
Question Description
How does photosynthesis help to maintain the percentage of oxygen and carbon dioxide in the atmosphere?a)By giving off carbon dioxide and absorbing oxygen.b)By giving off oxygen and absorbing carbon dioxide.c)By releasing oxygen and carbon dioxide.d)By absorbing oxygen and carbon dioxide.Correct answer is option 'B'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about How does photosynthesis help to maintain the percentage of oxygen and carbon dioxide in the atmosphere?a)By giving off carbon dioxide and absorbing oxygen.b)By giving off oxygen and absorbing carbon dioxide.c)By releasing oxygen and carbon dioxide.d)By absorbing oxygen and carbon dioxide.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How does photosynthesis help to maintain the percentage of oxygen and carbon dioxide in the atmosphere?a)By giving off carbon dioxide and absorbing oxygen.b)By giving off oxygen and absorbing carbon dioxide.c)By releasing oxygen and carbon dioxide.d)By absorbing oxygen and carbon dioxide.Correct answer is option 'B'. Can you explain this answer?.
Solutions for How does photosynthesis help to maintain the percentage of oxygen and carbon dioxide in the atmosphere?a)By giving off carbon dioxide and absorbing oxygen.b)By giving off oxygen and absorbing carbon dioxide.c)By releasing oxygen and carbon dioxide.d)By absorbing oxygen and carbon dioxide.Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 7. Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free.
Here you can find the meaning of How does photosynthesis help to maintain the percentage of oxygen and carbon dioxide in the atmosphere?a)By giving off carbon dioxide and absorbing oxygen.b)By giving off oxygen and absorbing carbon dioxide.c)By releasing oxygen and carbon dioxide.d)By absorbing oxygen and carbon dioxide.Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of How does photosynthesis help to maintain the percentage of oxygen and carbon dioxide in the atmosphere?a)By giving off carbon dioxide and absorbing oxygen.b)By giving off oxygen and absorbing carbon dioxide.c)By releasing oxygen and carbon dioxide.d)By absorbing oxygen and carbon dioxide.Correct answer is option 'B'. Can you explain this answer?, a detailed solution for How does photosynthesis help to maintain the percentage of oxygen and carbon dioxide in the atmosphere?a)By giving off carbon dioxide and absorbing oxygen.b)By giving off oxygen and absorbing carbon dioxide.c)By releasing oxygen and carbon dioxide.d)By absorbing oxygen and carbon dioxide.Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of How does photosynthesis help to maintain the percentage of oxygen and carbon dioxide in the atmosphere?a)By giving off carbon dioxide and absorbing oxygen.b)By giving off oxygen and absorbing carbon dioxide.c)By releasing oxygen and carbon dioxide.d)By absorbing oxygen and carbon dioxide.Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice How does photosynthesis help to maintain the percentage of oxygen and carbon dioxide in the atmosphere?a)By giving off carbon dioxide and absorbing oxygen.b)By giving off oxygen and absorbing carbon dioxide.c)By releasing oxygen and carbon dioxide.d)By absorbing oxygen and carbon dioxide.Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 7 tests.
Explore Courses for Class 7 exam

Top Courses for Class 7

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev