Question

Biotic factors causing damage to food grains are

• A. Temperature
• B. Birds and rodents
• C. Air
• D. All of the above

Answer 1

The correct option is B Birds and rodents

Biotic factors are:
1. Rodents, birds and animals.
2. Insects and micro-organisms- Micro organisms like fungi, bacteria, yeast, moulds, etc., greatly damage the stored food.
3. Enzymes- Enzymes are biocatalysts. They are found in living cells. They spoil vegetable, fruits, meat, fish, etc. When stored for an appreciable period. Moreover, enzymes over-ripen the food which results in their spoilage.