What are the impacts of land relief on agriculture?​

Topography relates to how difficult it is to till land, soil erosion and poor transportation networks and facilities. Agriculture can be mechanized depending on the topography of land to be used. It's impossible to use farm machinery on sloppy land or rough, hilly slopes. Climate, land relief, soil and vegetation are the main factors which influence agricultural activity. The growth of plants depends on the temperature and humidity of the land and the amount of light it receives. The relief of the land determines the type of activity that takes place on the land. In highlands such as hills mountains and plateaus where the slope of the land is generally steep the land is used for grazing sheep and goats. ... Terrace farming is also undertaken on hilly slopes to grow crop such as rice barley and tea.

When a lake, river or other aquatic  system  becomes  eutrophic, it can have serious negative effects on other organisms like fish, birds and even people.if an algal bloom is so bad that it causes wide-spread death  in  the  water, the organisms that die will all sink to the bottom and start to decompose.