Describe any five features of extensive commercial grain farming in the world.
Extensive commercial grain farming involves large-scale production of grains. The features are:
Large landholdings: Practiced over vast areas, mainly in temperate grasslands.
Mechanized farming: Uses advanced machinery for sowing, harvesting, and storage.
Low labor input: Relies on machines rather than manual labor.
Export-oriented: Produces surplus grain for export markets.
Climatic dependency: Requires specific climatic conditions like moderate rainfall and long growing seasons.
If vector \( \mathbf{a} = 3 \hat{i} + 2 \hat{j} - \hat{k} \) \text{ and } \( \mathbf{b} = \hat{i} - \hat{j} + \hat{k} \), then which of the following is correct?