The range at which soil essential elements concentration is recorded for optimal plant growth is marked Posted on:
The soil becomes toxic to plants when the concentration of its essential elements is in the range labelled Posted on:
Which of the following structural features are adapted for uses other than water conservation? Posted on:
A certain savanna grasshopper changes colour from green during the rainy season to brown during the dry season and black after dry season bush fires. The reason for these colour changes is that the Posted on: