Which of the following statements are incorrect for Natural selection?

(i) Natural selection is based on certain observations which are factual.

(ii) Populations are stable in size except for seasonal fluctuation, means that there had been competition for resources.

(iii) Variations the most fundamental evolutionary factor and all variations are inherited to the progeny.

(iv) Variations which are heritable and which make resource utilization better for few (adapted to habitat better) will enable only those to reproduce and leave more progeny.

(v) Herbicides, pesticides etc., resistant organisms/cell are appearing in a time scale of months or years and not centuries.

(vi) Appearance of herbicides, pesticides etc., resistant organisms/cells are examples of evolution by anthropogenic action.