Critically explain the marshallian definition of economics?​

Economics is the study of human activities in the ordinary course of business. It studies how man attains his income and how he utilizes it. In this way, it studies wealth, on one hand, and on the other hand, it is a part of the study of man, which is more important

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.

the space race was a battle to make advanced technology to get to the moon and to get a better understanding of space.