10 ct webquest ho zi ming tan chun keat ong xian hao human impact on environment
1. Human Impacts on the Environment
Name : Ho Zi Ming 201420016
Tan Chun Keat 201420025
Ong Xian Hao 201420004
Module: Foundation in Liberal Arts - Learning
Studies
Lecturer: Ms. Dot MacKenzie
Term : May 2014
Date : 4/7/2014
Topic : Presentation – Human Impact on the Environment
2. Table of Contents
I Introduction
II Thesis Statement
III Body
A Plastic Pollution Effects on Animals
B Endangered Sea Turtles
1 Plastic Pollution Effects on Animals
a Sea Turtles Mistake Rubbish for Food
b Nesting Habitats destroyed
IV Conclusion
V References
3. Thesis Statement
Sea turtles are endangered because they mistake
rubbish for food and their nesting habitats are being
destroyed.
4. Introduction
Plastic Pollution
• Plastic we throw away each year is enough to circle the earth
four times
• 80 percent of plastic pollution enters the ocean from the land
• 90 percent of trash floating on the ocean’s surface.
(Hasselberger, 2014)
http://www.plasticoceans.net/the-facts/what-a-waste/
5. Plastics Pollution on Animals
• Plastics kill 1.5 million marine animals each year.
• One million sea birds and 100, 000 marine mammals are
killed annually from plastics in the ocean.
• A lot of sea animals and sea bird have been documented
with plastics in or around their bodies. (Hasselberger,
2014)
http://www.waterencyclopedia.com/images/wsci_03_img0428.jpg
6. Endangered Sea Turtles
• Nearly all species of sea turtle
considered endangered
• Face a lot of threats
• Such as entanglement in fishing
gear, poaching and illegal trade of
eggs, meat and shells, coastal
development, global warming
and ocean pollution.
• Especially plastic pollution.
(Seeturtles, n.d.)
http://4.bp.blogspot.com/-DwPpl-nnhXU/T9gevFCbaaI/AAAAAAAAALU/lF1Kr-6_Fks/s1600/green-sea-turtle.jpg
7. Plastic and Other Marine Debris
• Plastic is thrown
away after use.
• E.g. toys, bottles,
food containers.
• Plastic colonizes 60
and 80% of marine
debris. (Seaweb,
n.d.)
http://blog.baybackpack.com/wp-content/uploads/2012/08/Marine-Debris.jpg
8. Reason:
I. Sea turtles mistake the rubbish for food
• Plastic bags are turtles’ biggest killer
• Sea turtles mistake plastics for jellyfish and ingest
them
• Block their digestive system and causes death.
(Seeturtles, n.d.)
http://www.plastikeep.com/images/turtle%20pollution.png
9. II. Nesting Habitat Destruction
• Start to reproduce at 12-50
• Only breed once per year
• Rubbish occupies their nesting
habitats. (SeaWorld Parks &
Entertainment, n.d.)
http://awsassets.wwf.org.au/img/sp_hawksbill_turle_hatchling_plastic_800x600_4090.jpg
