Advertisements
Advertisements
प्रश्न
State whether the following statement is true or false. If false, correct them.
Plants produce oxygen during the process of making their own food.
पर्याय
True
False
Advertisements
उत्तर
True
Explanation:
-
Plants make their food through photosynthesis, which occurs in the presence of sunlight, carbon dioxide and water.
-
During this process, plants absorb carbon dioxide and release oxygen as a by-product.
Photosynthesis equation: \[\ce{6CO2 + 6H2O ->[sunlight] C6H12O6 + 6O2}\] - So, oxygen is released during photosynthesis, which is how plants make their own food.
APPEARS IN
संबंधित प्रश्न
What is air pollution ? What are the harmful effects of sulphur dioxide, nitrogen dioxide and hydrogen sulphide present in the air ?
What are the causes of air pollution?
Classify Carbon monoxide. Also give a balanced equation to prepare it.
The diagrams below represents an experiment to show the presence of a component of air.

- State why air is sucked from – outlet ‘B’ and not from outlet “A”
- State why the air is sucked ‘slowly’ from the outlet “B”
- State the observation seen after completion of the experiment.
- State the reason for the above observation seen.
- Name another component which if present in air as a pollutant would have given a similar observation
Tabulate the various components of air, including the components with variable composition.
Write the percentage of the gases present in air.

Nitrogen is essential for burning.
What is the presence of harmful substance in the air called?
The composition of air changes slightly from place to place. Give examples.
Usha took a lump of dry soil in a glass and added water to it till it was completely immersed. She observed bubbles coming out. The bubbles contain ______.
