Question
Distinguish between mixed cropping and intercropping.
Distinguish between mixed cropping and intercropping.
Mixed Cropping:
Intercropping:
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Write down four main characters of Pteriodophyta. Give two examples.

Define meristematic tissue? Write down characteristics of meristematic cells.
| Column I | Column II | ||
| a. | Fungal disease | i. | Dengue fever |
| b. | Viral disease | ii. | Cholera |
| c. | Protozoan disease | iii. | Skin disease |
| d. | Bacterial disease | iv. | Malaria |
What is air pollution? How is it caused? Give its effects.
Enlist three types of muscles with their locations.
When do the layers start laying eggs?