Rotation example sentences

If crop rotation is done properly then two or three crops can be grown in a year with good harvests.This illustrates that the restricted rotation of atoms or groups around the doubly bonded carbon atoms gives rise to different geometries of such compounds.However, it may be remembered that rotation around a C-C single bond is not completely free.Electron distribution of the sigma molecular orbital is symmetrical around the internuclear axis of the C–C bond which is not disturbed due to rotation about its axis.This rotation results into different spatial arrangements of atoms in space which can change into one another.Alkanes show conformational isomerism due to free rotation along the C–C sigma bonds.But various other factors also influence these winds – the rotation of the Earth and the presence of mountain ranges in the paths of the wind are a couple of these factors.Such spatial arrangements of atoms which can be converted into one another by rotation around a C-C single bond are called conformations or conformers or rotamers.Therefore, these are mostly grown in rotation with other crops.Alkanes can thus have infinite number of conformations by rotation around C-C single bonds.Enclosures were now seen as necessary to make long-term investments on land and plan crop rotations to improve the soil.Depending upon the duration, crop rotation is done for different crop combinations.The growing of different crops on a piece of land in a pre-planned succession is known as crop rotation.Preventive methods such as proper seed bed preparation, timely sowing of crops, intercropping and crop rotation also help in weed control.Magnitude of torsional strain depends upon the angle of rotation about C–C bond.