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