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Noxious Weeds
Contributed by: Ochs
  • 1. What is an ecosystem?
A) The water cycle in a given area
B) It's another word for environmental science
C) The life cycle of plants and animals in a community
D) All of the living and nonliving things that affect a given habitat
E) None of these answers is correct
  • 2. What is the role of a plant in an ecosystem?
A) Converts the sun's energy to food
B) It eats consumers
C) None of these answers is correct
D) Absorb excess water from the soil
E) To provide beauty to the other plants around it
  • 3. What is a weed?
A) All of these answers are correct
B) A herb used by the ancient Egyptians to mummify the bodies of Pharaohs
C) Plants of foreign origin that injure the environment in which they are introduced
D) A type of reed used to make furniture
E) Any plant growing where it is not wanted
  • 4. What is a noxious weed?
A) Plants of foreign origin that injure the environment in which they are introduced
B) A weed that always smells really bad
C) Any plant growing where it is not wanted
D) A plant that only grows in mud
  • 5. How do noxious weeds affect our environment?
A) All of these answers are correct
B) Destroy habitat
C) Reduce biodiversity
D) Soil erosion
E) Fire hazards
  • 6. How do noxious weeds reduce biodiversity?
A) By isolating fungi and bacteria that would kill off other plants
B) By helping native plants grow better
C) By creating monoculture's
D) By making more soil nutrients to enrich the soil
  • 7. How do noxious weeds destroy habitat?
A) They start fires
B) They actually help the environment by killing off unwanted insects
C) They can crowd out native plants
D) None of these answers are correct
E) They provide food for predators
  • 8. What is allelopathy?
A) A chemical that can prevent the growth of other plants
B) Using Aloe Vera plants to heal injuries
C) The study of the sea animals called Allelos
D) The study of all elements in an ecosystem
  • 9. What noxious weed is the number one concern in Natrona County?
A) Spotted knapweed
B) Scottish thistle
C) Cheatgrass
D) Leafy spurge
E) Dalmatian toadflax
  • 10. What noxious weed produces 1000 seeds per year per plant?
A) Perennial pepperweed
B) Cheatgrass
C) Spotted knapweed
D) Leafy spurge
E) Salt cedar
  • 11. What is a bi-annual plant?
A) A plant that growths for two out of the four seasons before dying
B) A plant that blooms every other year
C) A plant that grows for two years before dying
D) A plant that has two main stems
  • 12. What is an annual plant?
A) A plant that never flowers
B) A plant that grows back every year
C) Noe of these answers are correct
D) A plant that blooms every year
E) A plant that dies off every year
  • 13. What is a perennial plant?
A) A type of bush that grows in Natrona County
B) A type pf weed related to pepperweed
C) A plant that never dies and never has flowers
D) A plant that comes grows back every year
E) All of these answers are correct
  • 14. What is the number one noxious weed in the world?
A) Canada thistle
B) Salt cedar
C) Leafy spurge
D) Cheatgrass
E) Spotted knapweed
  • 15. Education is one of many ways to control noxious weeds.
A) False
B) True
  • 16. What is the second leading cause of extinction worldwide?
A) Lack of producers in the food chain
B) Hunting
C) Climate change
D) Noxious weeds
E) Drought
  • 17. What is integrated weed management?
A) Management of multiple weeds
B) None of these answers is correct
C) A way to destroy all of the weeds in an area at one time
D) Using chemicals to destroy all weeds
E) Use multiple ways to control noxious weeds
  • 18. Noxious weeds can directly or indirectly harm public health
A) True
B) False
  • 19. What is biodiversity?
A) All of these answers are correct
B) It's another word for environmental science
C) The variety of plants and animals in a habitat
D) The life cycle of plants and animals in a community
E) A habitat that includes two types of biomes
  • 20. Noxious weeds can affect recreation.
A) False
B) True
  • 21. Biological control of noxious weeds involves pulling the plants or cutting them down
A) True
B) False
  • 22. Weeds can actually decrease tourism
A) False
B) True
  • 23. Fish are not affected by noxious weeds, but ducks and geese can be
A) False
B) True
  • 24. Salt cedar can be found in the city of Casper
A) True
B) False
  • 25. What method can be used to control noxious weeds?
A) Chemical
B) All of these answers are correct
C) Biological
D) Mechanical
E) Cultural
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