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प्रश्न
In the soil, which nutrient is enriched by blue-green algae (cyanobacteria)?
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उत्तर
Nitrogen fixing bacteria that are known as cyanobacteria enriches nitrogen and changes it into nitrites and nitrates and then the nitrogen transforms into blue-green algae.
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संबंधित प्रश्न
Materials like milk are instantly cooled after heating up to a certain high temperature. This method of food preservation is called ______.
Salt is a ______ type of food preservative.
The biotic factor which spoils the food item is
Grains are preserved by
Give reason for the following.
Fresh milk is boiled before consumption while processed milk stored in packets can be consumed without boiling.
Give an example of a substance used to protect food grains in the olden days ______.
Dried Neem leaves and turmeric are used to store food grains in our home to protect the grain from insects and Beetles.
What shall we do?
We need to protect foodstuffs from pests like rats, cockroaches, wall-lizards, etc.
Find the odd-man-out.
Find the odd-man-out.
