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