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Human Impacts on Coasts Flashcards | StudBud
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Human Impacts on Coasts
Human Impacts on Coasts
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Geography Year 10 Australian Curriculum
Flashcards
15 cards
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Practice quiz
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Questions
15
Answers
1
Which of these is having the greatest impact on the Great Barrier Reef?
Saltwater Intrusion
Coral Bleaching
Coastal Erosion
Algal Blooms
2
What has been the annual increase in sea levels due to climaet chnage since the mid 1990s?
30 cm
3 mm
30 mm
3 cm
3
The world's second largest ever oil spill occured in 2010 - where was it located?
Alaska
In the Arabian Gulf
In the Gulf of Mexico
Off the Queensland Coast
4
How much have global temperatures risen since the late 1800s?
-0.6 degrees C
0.4 degrees C
3 degrees celcius
8.3 degrees celcius
5
By how much have coastal fish stocks dropped in the last 30 years?
10%
60%
90%
30%
6
How many kilograms of rubbish are dumped into the world's oceans annually?
7 billion kg
6.6 million kg
50,000 kg
200 kg
7
Global climate chnage does NOT lead to ...
Less carbon dioxide absorbtion into the ocean
Higher Temperatures
Changing Rainfall Patterns
Increased Coastal Erosion
8
How much of the world's population lives within 100km of the coast?
2/3
3/4
1/2
1/4
9
What is swept into oceans by flooding that adds significantly to ocean pollution?
Nutrients and Pesticides from Farms
Coastal plants & dead vegetation
Oil
Animals such as rodents and livestock
10
What type of ocean debris causes the most damage to marine life?
Plastic Bags
Plastic caps and lids
Plastic Microbeads
Cigarette Butts
11
During what season are ocean dead zones most likely to form?
Autumn
Winter
Spring
Summer
12
Approximately what percentage of debris in oceans is plastic waste from Asia and North America?
80%
10%
50%
30%
13
What is causing ocean acidification to occur?
Absorption of excess oxygen into the oceans
Absorption of Carbon Dioxide into the ocean
Decomposition of dead coral reefs
Nutrients Runoff from fertilizers swept into the ocean
14
What causes dead zones to occur? (In rivers and oceans)
Acid Rain
The water surface is covered with rubbish blocking light
Oxgyen levels drop because of decomposing algae
Water overheats from global warming
15
What percentage of Australia's coastline faces flooding as a result of climate change?
less than 1%
nearly 99%
around 10%
up to 50%
