What percentage of the Earth's surface is covered by oceans?

Ocean Science and Environmental Impact

Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
90%
85%
71%
50%
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary chemical formed when CO2 dissolves in water?
Calcium carbonate
Carbonic acid
Bicarbonate
Simple carbonate
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the pH scale being logarithmic affect the interpretation of ocean pH changes?
It makes large changes appear smaller
It makes small changes appear larger
It reverses the changes
It has no effect
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the expected pH level of oceans by 2100 if current trends continue?
7.5
7.8
8.25
8.14
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What percentage of onshore pteropods showed severe dissolution damage in 2011?
90%
53%
24%
75%
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a potential consequence of marine heatwaves?
More frequent hurricanes
Decreased ocean salinity
Coral reef bleaching
Increased fish populations
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What percentage of blue carbon is captured by seagrass meadows annually?
20%
5%
1%
10%
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