The correct answer is Agronomy.
Agronomy is a branch of agriculture science which deals in crops and the related soils. It is actually integration of many sciences. How to grow crops effectively and profitably without damaging environment and judicious use of natural resources are dealt in agronomy. Agronomy also develops techniques for the better use of soil and increase the food production.
Semipermeable means the cell membrane can pick and choose what goes out of it and into it. At least, that's what I believe it is.
The policy or action of using vigorous campaigning to bring about political or social change.
The correct probability for this problem would be 1/4.
C. that would be a punnentt square