Answer: Ecosystem
Explanation:the ecosystem is a network of organisms,their environment and their interaction in a particular place.it involves the interaction between the different organisms that make up a community and it's non-living environment.
The living organisms share resources with each other and include autotrophs, heterotrophs,decomposers; trees,grasses,insects, animals etc.
The non living components include rainfall,air water etc
The passive transport of water is specifically called osmosis.
A sudden change in the weather is caused by an air mass.