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We all know that in the process of photosynthesis,  plants take carbon dioxide and give oxygen during the day and vice versain night. Now, choose the correct answer to find out at what time oxygen levels will be minimum in the air?
  • a)
    Morning
  • b)
    Noon
  • c)
    Evening
  • d)
    Night
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
We all know that in the process of photosynthesis, plants take carbon ...
**Explanation:**

Photosynthesis is the process in which plants use sunlight, water, and carbon dioxide to produce glucose (energy) and oxygen. This process takes place in the chloroplasts of plant cells, specifically in the green pigment called chlorophyll. During the day, when there is sunlight, photosynthesis occurs and oxygen is released as a byproduct. However, at night, when there is no sunlight, photosynthesis does not occur and plants consume oxygen through a process called respiration.

**Oxygen Levels in the Air Throughout the Day:**

To understand when oxygen levels will be minimum in the air, we need to consider the process of photosynthesis and respiration in plants. Here is a breakdown of oxygen levels in the air throughout the day:

**Morning:**
- In the morning, when the sun rises, photosynthesis starts and oxygen levels in the air begin to increase.
- However, since it is still early in the day, the overall oxygen levels may not be at their highest yet.

**Noon:**
- During noon, when the sun is at its peak, photosynthesis is at its highest rate.
- This means that oxygen production is also at its highest, leading to an increase in oxygen levels in the air.

**Evening:**
- In the evening, as the sun starts to set, photosynthesis slows down and eventually stops.
- Oxygen levels in the air may start to decrease as plants switch from producing oxygen to consuming it through respiration.

**Night:**
- At night, when there is no sunlight, photosynthesis does not occur.
- Plants rely solely on respiration to produce energy, which consumes oxygen and releases carbon dioxide.
- As a result, oxygen levels in the air are lowest during the night.

Therefore, the correct answer is option 'D' - Night. During the night, when there is no sunlight for photosynthesis, oxygen levels in the air will be minimum due to the consumption of oxygen by plants through respiration.
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Community Answer
We all know that in the process of photosynthesis, plants take carbon ...
Oxygen levels are lowest at night because plants stop photosynthesis (which produces oxygen) and consume oxygen during respiration.
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We all know that in the process of photosynthesis, plants take carbon dioxide and give oxygen during the day and vice versain night. Now, choose the correct answer to find out at what time oxygen levels will be minimum in the air?a)Morningb)Noonc)Eveningd)NightCorrect answer is option 'D'. Can you explain this answer?
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