Planting different types of crop on the same land at different times of the year. Causes less drain on the soil.
rotational farming means to farm with changing a field to farm in 2-3 years, to let the field fallow for 15 years and give give the field fertilize. After 15 years, the farmer could reuse it.
Because farming certain plants drains certain nutrients from the soil. Rotational farming rotates the crops being grown (sometimes fields are left fallow i.e. empty) and therefore, nutrients remain in the soil.
In intensive rotational grazing, no. In dairy farming (which is intensive), yes.
a heart have no rotational symmetry!
A trapezium does not have rotational symmetry.
It has 8 rotational symmetry.
It has 8lines of rotational symmetry
It has rotational symmetry to the order of 2
Equilateral triangles have rotational symmetry.
A trapezoid has no rotational symmetry.
A kite does not have rotational symmetry.
No a Z doesn't have a rotational symmetry
A line has rotational symmetry of order 2.