What is the difference between physical and human geography

The answer is Physical geography studies the earth's surface and the physical environment, while Human geography studies human societies and their relationship with the environment in which they live.

Explanation:

The physical geography studies in a systemic and spatial way, the terrestrial surface considered as a whole and specifically, the natural geographical space, this science studies the physical environment, its main elements being the relief, the terrestrial waters, the climate, the vegetation, the Fauna and soil. On the other hand, Human geography is responsible for studying human societies from a spatial perspective, the relationship between these societies and the environment in which they live, as well as cultural landscapes and the human regions they build.

answer; cattle ranching on the savanna,and forestry in the amazon;

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.