We describe a bond having one end slightly positive and the other end slightly negative as being polar. Inductive effects. An atom like fluorine which can pull the bonding pair away from the atom it is attached to is said to have a negative inductive effect.
These genetically modified organisms (GMOs) are designed for many reasons, including: pesticide and disease resistance, drought/frost resistance, increased yields, enhanced nutritional content and as a way to produce drugs or vaccines at low cost on a large scale.
Reasons to Rotate Crops. 1  Disease Prevention: The main reason to rotate crops is to prevent the spread of plant disease. 2  Insect Control: Crop rotation also helps reduce insect infestations. 3  Nutrient Balance: Different families of plants require different nutrients.