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