Noxious Weeds
  • 1. What is an ecosystem?
A) None of these answers is correct
B) All of the living and nonliving things that affect a given habitat
C) The life cycle of plants and animals in a community
D) The water cycle in a given area
E) It's another word for environmental science
  • 2. What is the role of a plant in an ecosystem?
A) Absorb excess water from the soil
B) None of these answers is correct
C) To provide beauty to the other plants around it
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 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) Plants of foreign origin that injure the environment in which they are introduced
  • 4. What is a noxious weed?
A) Any plant growing where it is not wanted
B) Plants of foreign origin that injure the environment in which they are introduced
C) A plant that only grows in mud
D) A weed that always smells really bad
  • 5. How do noxious weeds affect our environment?
A) Destroy habitat
B) Reduce biodiversity
C) All of these answers are correct
D) Soil erosion
E) Fire hazards
  • 6. How do noxious weeds reduce biodiversity?
A) By helping native plants grow better
B) By creating monoculture's
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 provide food for predators
B) They start fires
C) They actually help the environment by killing off unwanted insects
D) None of these answers are correct
E) They can crowd out native plants
  • 8. What is allelopathy?
A) The study of all elements in an ecosystem
B) A chemical that can prevent the growth of other plants
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) Dalmatian toadflax
D) Leafy spurge
E) Scottish thistle
  • 10. What noxious weed produces 1000 seeds per year per plant?
A) Leafy spurge
B) Spotted knapweed
C) Perennial pepperweed
D) Salt cedar
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 has two main stems
D) A plant that growths for two out of the four seasons before dying
  • 12. What is an annual plant?
A) A plant that blooms every year
B) A plant that grows back every year
C) A plant that never flowers
D) Noe of these answers are correct
E) A plant that dies off every year
  • 13. What is a perennial plant?
A) A type pf weed related to pepperweed
B) A type of bush that grows in Natrona County
C) A plant that comes grows back every year
D) A plant that never dies and never has flowers
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) Leafy spurge
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) Lack of producers in the food chain
B) Climate change
C) Hunting
D) Noxious weeds
E) Drought
  • 17. What is integrated weed management?
A) Management of multiple weeds
B) Using chemicals to destroy all weeds
C) None of these answers is correct
D) A way to destroy all of the weeds in an area at one time
E) Use multiple ways to control noxious 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) The life cycle of plants and animals in a community
D) A habitat that includes two types of biomes
E) It's another word for environmental science
  • 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) 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) Mechanical
C) Chemical
D) Cultural
E) All of these answers are correct
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