how many kinds of pollution are there?

how many kinds of pollution are there?
how many kinds of pollution are there?

how many kinds of pollution are there?
污染的种类有多少种?
大体分5类:
Land pollution 土地污染
Water pollution 水(源)污染
Air pollution 空气污染
Sea pollution 海水污染
Sound pollution 声音污染

这里有多少种污染(源)?

Many kinds .Air pollution ,water pollution......

Three.
They are air pollution,water pollution and soil pollution.
大气污染,水污染,土壤污染

pollution is uncountable noun

Air Pollution, Water Pollution, Noise Pollution, Soil Pollution, Nuclear Pollution, Light Pollution, etc. etc.