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