Give examples of natural complexes

The largest natural complex is the geographical envelope, the smaller in scope are the oceans, continents. Smaller in rank and occupied territory:
Deserts
the woods;
swamps;
taiga;
meadows;
tundra;
steppes;
glades;
ponds;
ravines;
the mountains;
lowlands;
sea;
hills;
plains;
channel;
floodplain;
lake;
river;
the bay;
Fields
cities;
gardens;
parks;
villages.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.