The correct answer is "dust storms".
First of all, rain, unless it is acid rain, is not a source of pollution although it is a natural phenomena. Pesticides and fossil fuels both cause pollution but they are a man-made phenomena not natural. Dust storms produce pollution in the air by swifting dust rendering the air almost unhabitable. This is a natural occurence and at the same time, pollutes.
Perlemoen is reasonably
easy to take available of the ocean and do not really required huge and
expensive equipment. The poachers take out millions of rands worth of Perlemoen
with relatively simple and cheap equipment such as wet suites, googles and
flippers. The most expensive equipment they use are their boats and vehicles. In
comparison with the lucrative industry the costs of poaching are low. Perlemoen
are often the smaller, younger abalone of the species that are taken because
they are quite simply and easier to harvest.
1.
The younger perlemoen are found closer to the
shoreline and often bunched together and they can get a whole whack of them at
one spot.
2.
The strandlopers harvested the perlemoen from
the rocks during low tide without the need for diving.
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Cm3 unless its luiquid right
? hope this helps
