The soil becomes toxic to plants when the concentration o...
The soil becomes toxic to plants when the concentration of its essential elements is in the range labelled
IV
III
II
I
Correct answer is A
No explanation has been provided for this answer.
Chromosomes are found in the ...
The genes crossing over occurs during? ...
In the diagram, the function of the part labelled 2 is to ...
The conclusion drawn from the experiment in the diagram above is that ...
Which of the following instruments is used to measure wind speed? ...
The attachment of the embryo to the wall of the uterus is called ...
Which of the following plant hormone is responsible for ripening of fruits? ...
The term used to describe the effective management of natural resources by man is ...