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