Noxious Weeds
  • 1. What is an ecosystem?
A) The water cycle in a given area
B) The life cycle of plants and animals in a community
C) All of the living and nonliving things that affect a given habitat
D) None of these answers is correct
E) It's another word for environmental science
  • 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) To provide beauty to the other plants around it
E) Absorb excess water from the soil
  • 3. What is a weed?
A) All of these answers are correct
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 type of reed used to make furniture
E) A herb used by the ancient Egyptians to mummify the bodies of Pharaohs
  • 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) Fire hazards
C) Reduce biodiversity
D) Soil erosion
E) All of these answers are correct
  • 6. How do noxious weeds reduce biodiversity?
A) By making more soil nutrients to enrich the soil
B) By creating monoculture's
C) By helping native plants grow better
D) By isolating fungi and bacteria that would kill off other plants
  • 7. How do noxious weeds destroy habitat?
A) None of these answers are correct
B) They start fires
C) They provide food for predators
D) They actually help the environment by killing off unwanted insects
E) They can crowd out native plants
  • 8. What is allelopathy?
A) Using Aloe Vera plants to heal injuries
B) A chemical that can prevent the growth of other plants
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) Scottish thistle
B) Dalmatian toadflax
C) Leafy spurge
D) Cheatgrass
E) Spotted knapweed
  • 10. What noxious weed produces 1000 seeds per year per plant?
A) Spotted knapweed
B) Salt cedar
C) Leafy spurge
D) Perennial pepperweed
E) Cheatgrass
  • 11. What is a bi-annual plant?
A) A plant that blooms every other year
B) A plant that grows for two years before dying
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 blooms every year
B) A plant that dies off every year
C) Noe of these answers are correct
D) A plant that never flowers
E) A plant that grows back 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) Spotted knapweed
D) Cheatgrass
E) Leafy spurge
  • 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) Climate change
E) Hunting
  • 17. What is integrated weed management?
A) A way to destroy all of the weeds in an area at one time
B) Management of multiple weeds
C) Use multiple ways to control noxious weeds
D) None of these answers is correct
E) Using chemicals to destroy all weeds
  • 18. Noxious weeds can directly or indirectly harm public health
A) False
B) True
  • 19. What is biodiversity?
A) The variety of plants and animals in a habitat
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) All of these answers are correct
  • 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) Cultural
C) Biological
D) Mechanical
E) All of these answers are correct
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