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

Ocean Ecosystems and Productivity Concepts

Interactive Video
•
Biology, Science, Geography
•
7th - 12th Grade
•
Medium

Amelia Wright
Used 1+ times
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
50%
65%
71%
85%
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which terrestrial ecosystem is most similar in productivity to the open ocean?
Regular desert
Tropical rainforest
Grassland
Tundra
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which ecosystem is more productive than the open ocean?
Tundra
Extreme desert
Semidesert
Coral reefs
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of algal beds and coral reefs in marine ecosystems?
They cover most of the ocean floor
They are the least productive ecosystems
They support a large number of marine species
They are found only in polar regions
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary role of phytoplankton in the ocean?
Filtering pollutants
Producing oxygen
Providing shelter for fish
Acting as primary producers
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main reason for low productivity in the open ocean?
High salinity
Lack of nutrients
Lack of sunlight
Strong currents
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a thermocline?
A type of marine plant
A nutrient-rich zone
A layer of water with different temperatures
A type of ocean current
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