Noxious Weeds
  • 1. What is an ecosystem?
A) All of the living and nonliving things that affect a given habitat
B) The life cycle of plants and animals in a community
C) The water cycle in a given area
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) None of these answers is correct
B) It eats consumers
C) To provide beauty to the other plants around it
D) Absorb excess water from the soil
E) Converts the sun's energy to food
  • 3. What is a weed?
A) A type of reed used to make furniture
B) All of these answers are correct
C) Any plant growing where it is not wanted
D) A herb used by the ancient Egyptians to mummify the bodies of Pharaohs
E) Plants of foreign origin that injure the environment in which they are introduced
  • 4. What is a noxious weed?
A) Plants of foreign origin that injure the environment in which they are introduced
B) A plant that only grows in mud
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) Reduce biodiversity
B) Fire hazards
C) Soil erosion
D) Destroy habitat
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) They actually help the environment by killing off unwanted insects
B) They start fires
C) None of these answers are correct
D) They can crowd out native plants
E) They provide food for predators
  • 8. What is allelopathy?
A) The study of the sea animals called Allelos
B) Using Aloe Vera plants to heal injuries
C) A chemical that can prevent the growth of other plants
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) Cheatgrass
D) Spotted knapweed
E) Leafy spurge
  • 10. What noxious weed produces 1000 seeds per year per plant?
A) Cheatgrass
B) Spotted knapweed
C) Perennial pepperweed
D) Salt cedar
E) Leafy spurge
  • 11. What is a bi-annual plant?
A) A plant that blooms every other year
B) A plant that growths for two out of the four seasons before dying
C) A plant that grows for two years before dying
D) A plant that has two main stems
  • 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) A plant that dies off every year
E) Noe of these answers are correct
  • 13. What is a perennial plant?
A) A plant that never dies and never has flowers
B) All of these answers are correct
C) A type of bush that grows in Natrona County
D) A plant that comes grows back every year
E) A type pf weed related to pepperweed
  • 14. What is the number one noxious weed in the world?
A) Leafy spurge
B) Salt cedar
C) Canada thistle
D) Spotted knapweed
E) Cheatgrass
  • 15. Education is one of many ways to control noxious weeds.
A) True
B) False
  • 16. What is the second leading cause of extinction worldwide?
A) Hunting
B) Noxious weeds
C) Climate change
D) Lack of producers in the food chain
E) Drought
  • 17. What is integrated weed management?
A) A way to destroy all of the weeds in an area at one time
B) Using chemicals to destroy all weeds
C) None of these answers is correct
D) Management of multiple weeds
E) Use multiple ways to control noxious weeds
  • 18. Noxious weeds can directly or indirectly harm public health
A) True
B) False
  • 19. What is biodiversity?
A) A habitat that includes two types of biomes
B) The life cycle of plants and animals in a community
C) All of these answers are correct
D) The variety of plants and animals in a habitat
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) 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) 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) Biological
B) Cultural
C) Chemical
D) All of these answers are correct
E) Mechanical
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