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20 questions
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- 1. Multiple Choice
On a coral reef ecosystem, which factor is biotic?
rocks
sand
sea horse
water
- 2. Multiple Choice
Which natural disaster is made worse when people destroy estuaries?
flooding and storm damage
tornados
earthquake
drought
- 3. Multiple Choice
How do temperate rain forests differ from tropical rain forests?
Temperate are a source of lumber while tropical rain forests are not.
Temperate have nutrient rich soil while tropical do not.
Temperate are moist year round while tropical are mostly dry.
all of them
- 4. Multiple Choice
In which biome does drilling for oil and gas interrupt migration patterns?
desert
grassland
taiga
tundra
- 5. Multiple Choice
What is the main way people have reduced habitats for wild species in grasslands?
building homes
making roads
plowing the land for cereal crops
all of them
- 6. Multiple Choice
Which of the following is a biotic factor?
sunlight
worms
water
climate
- 7. Multiple Choice
If you see a wetland with trees growing in it, _______.
it's most likely freshwater
it's most likely salt water
there is no way to predict if it is fresh or salt water
it is both saltwater and freshwater
- 8. Multiple Choice
Why have people cleared so much of Earth's tropical rain forests?
lumber
farms
ranches
all of them
- 9. Multiple Choice
Which is NOT and aquatic ecosystem?
freshwater
taiga
estuary
wetland
- 10. Multiple Choice
What are areas where freshwater meets saltwater called?
wetlands
estuaries
coastal byways
intertidal zones
- 11. Multiple Choice
What is salinity?
the amount of salt dissolved in water
the amount of oxygen dissolved in water
the amount of pollution in water
the speed of the flow of water in a stream
- 12. Multiple Choice
Which of these factors are biotic?
insects
water
soil
sunlight
- 13. Multiple Choice
Which of the following biomes has weather that is warm and wet year-round?
desert
grassland
taiga
tropical rain forest
- 14. Multiple Choice
As plants in an area undergoing ecological succession dies, _____.
they are replaced by plants of the same species
they are replaced by plants of a different species
they are replaced by the same species AND different species
no plants grow in their place
- 15. Multiple Choice
Which is NOT a freshwater ecosystem?
stream
lake
ocean
river
- 16. Multiple Choice
Wetlands contain which of the following?
only freshwater
only saltwater
either freshwater or saltwater
very little nutrients
- 17. Multiple Choice
How do people use water from freshwater ecosystems?
drinking
bathing
crop irrigation
all of them
- 18. Multiple Choice
Which land biome covers the most area on Earth?
desert
grassland
taiga
temperate deciduous forest
- 19. Multiple Choice
What are coral reefs?
rock
deposits of bones from dead fish
plants
outside skeletons of tiny, soft-bodied animals
- 20. Multiple Choice
Which of these factors is abiotic?
bird
frog
hawk
wind
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