Atype of pollution in which the source of pollution is not easily identifiable is called source pollution.

your answer is Nonpoint source pollution because this occurs due to a spreading of contaminants into a larger area and the actual source of the pollution can not be defined.

some examples are air, water and soil pollution. Mainly from vehicles the air is being polluted and we can not trace it.

same happens in case of water and soil many hospitals, factories, labs and even homes discard some pollutants and we can't find a single source.

if the source is only single place like a particular hospital or handicraft factory than we can call it as a point source pollution.

the right answer is it connects amino acids

answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.