3. INTRODUCTION
• Oceans cover about 71% of the Earths
surface.
• They play an important role in
the chemical and biological balance of life
on earth.
• They are vital to our food security,
commerce and transportation.
• But human activity has troubled the health
of oceans.
• The habitats of marine mammals and fish
have been degraded severely, with
pollution responsible for the mass deaths
of fish, mammals and corals.
4. MARINE POLLUTION
• It is defined as the discharge of waste
substances into the sea resulting harm to
living resources and hazards to human
health.
• Marine Pollution is associated with the
changes in physical, chemical and
biological conditions of the sea water.
5. POLLUTANTS
Pollutantscan simply be defined as the materialswhich cause pollution.The following are the important
pollutantsthat cause marine pollution.
• Sewage
• Pesticides
• Plastic wastes
• Metallicwastes
• Oil
• Sediment plumes (by deep sea mining)
• Heat
• Radioactivewaste
• Dredge spoil
6. PLASTIC WASTE
• The mass of plastic in the oceans may be
as high as one hundred million metric
tons.
• Many animals that live on or in the
sea consume flotsam by mistake, as
it often looks similar to their natural prey.
7. PLASTIC WASTE
• Plastic debris, when bulky or tangled, is
difficult to pass, and may become
permanently lodged in the digestive tracts
of these animals, blocking the passage of
food and causing death through
starvation, infection or suffocation.
8. PLASTIC WASTE
• Fishing nets entangle fish, dolphins, sea
turtles, sharks, crocodiles, sea birds, and
other creatures, restricting movement,
causing starvation, laceration and
infection, and those who need to return to
the surface to breath, suffocation.
9. MICROPLASTIC
• Microplasticsare extremely small
pieces of plastic debris in the
environmentresulting from the
disposal and breakdown of consumer
products and industrialwaste.
10. HABITATS
• The marine environmentsupplies
many kinds of habitatsthat support
marine life. A habitatis an
environmental areainhabitedby one
or more species.
11. HABITATS
• Since there is a lot of plasticin the
ocean many species are dying which
causes an imbalancein the ecological
balance.Many habitatssuch as the
coral reefs are dying and fish and
other species that used to use them
as protection are now finding it
difficult to survive.
12. LOCAL
ENVIRONMENT
• Malta's environmental problems
include inadequatewater supply,
deforestationand the preservation of
its wild life.
• The main challenges;
* Improving water management of
water bodies.
* Improving the air quality
* Protection of habitatsand species.
13. SOLUTION
1. Reduce Single-Use Plastic
2. Recycle Properly
3. Use Non-Plastic Alternatives;
*Bamboo tooth brushes
* Edible Cutlery
* Bars Of Hygiene Products instead of
liquid.
14. CONCLUSION
• Oceans cover the Earth's surface about 71% and playan importantrole in the chemical and biological
balanceof life on Earth.
• Researchers are still trying to find out what this plastic does to marine animals and also humans.
• If nothing is done about the problem humansand every other species on earth can and will become
extinct.
