Name the two ecosystems with the greatest biodiversity.
Rainforests and coral reefs
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15
A river is ................ ecosystem.
flowing water
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25
How can governments and autonomous communities protect ecosystems?
Collecting waste for recycling, preventing and fighting forest fires, approving and supervising works than affect ecosystems, creating protective areas...
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thief
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5
10
15
20
25
rocket
Go to first place!
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gift
Win 25 points!
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banana
Go to last place!
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seesaw
Swap points!
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seesaw
Swap points!
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shark
Other team loses 10 points!
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lifesaver
Give 25 points!
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20
.................. areas have a lot of light.
Coast
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15
A lake is ................ ecosystem.
still water
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20
What are the main causes of extinction?
Destruction, pollution and hunting or overfishing
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20
What is biodiversity?
It is the variety of living things on Earth.
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boom
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rocket
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rocket
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banana
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25
Biodiversity has many benefits for people. Name the benefits.
Provides raw material, food and energy; helps to regulate humidity and keep water clean and is a source of fun and enjoyment.
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25
Correct this sentence: Saltwater ecosystems are classified by the amount of rain.
Saltwater ecosystems are classified by the amount of SUNLIGHT.
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25
Correct this sentence: Relief is the shape of water.
Relief is the shape of LAND.
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25
Correct this sentence: The disappearance of a species is a great party.
The disappearance of a species is a great LOSS.
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20
................... is deep and light only reaches the surface.
Open sea
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5
The sunlight increases as the depth increases. True or False
