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4- There is also the ……………………..discharge of oil in oceans
or accidental oil…………………, the oil compound will interfere
with the sediments and will be ……………………..by marine
organisms .
5- An important indicator for chronic oil pollution is the presence
of……………………………
6- ………………….agents
are toxic substances released from ship’
s hulls.
7- Noise pollution can cause ……………changes in cetaceans , such
as leaving ………………or ………………..areas , and in extreme
cases can lead to…………….
8- The water held in the ………………….of a ship can introduce
…………….species in some areas , which will compete with
………….species
for ……………and………………., which can
lead to ……………..of some species.
9- Catching too many fish can decrease the fish population in a
particular area and cause ……………….There is also the fish that
is caught and thrown back to the sea or what we know as
……………, these two practices combined with the use of some
dangerous fishing methods like………………., have a negative
impact on the marine environment.
10Fishing nets can also harm marine organisms either through
……………….or……………….