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Noxious Weeds
Contributed by: Ochs
  • 1. What is an ecosystem?
A) The water cycle in a given area
B) It's another word for environmental science
C) None of these answers is correct
D) All of the living and nonliving things that affect a given habitat
E) The life cycle of plants and animals in a community
  • 2. What is the role of a plant in an ecosystem?
A) To provide beauty to the other plants around it
B) It eats consumers
C) Absorb excess water from the soil
D) Converts the sun's energy to food
E) None of these answers is correct
  • 3. What is a 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 herb used by the ancient Egyptians to mummify the bodies of Pharaohs
D) All of these answers are correct
E) A type of reed used to make furniture
  • 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) All of these answers are correct
B) Reduce biodiversity
C) Destroy habitat
D) Soil erosion
E) Fire hazards
  • 6. How do noxious weeds reduce biodiversity?
A) By creating monoculture's
B) By isolating fungi and bacteria that would kill off other plants
C) By helping native plants grow better
D) By making more soil nutrients to enrich the soil
  • 7. How do noxious weeds destroy habitat?
A) They provide food for predators
B) None of these answers are correct
C) They can crowd out native plants
D) They actually help the environment by killing off unwanted insects
E) They start fires
  • 8. What is allelopathy?
A) A chemical that can prevent the growth of other plants
B) The study of all elements in an ecosystem
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) Dalmatian toadflax
C) Spotted knapweed
D) Leafy spurge
E) Scottish thistle
  • 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 has two main stems
B) A plant that blooms every other year
C) A plant that growths for two out of the four seasons before dying
D) A plant that grows for two years before dying
  • 12. What is an annual plant?
A) Noe of these answers are correct
B) A plant that dies off every year
C) A plant that never flowers
D) A plant that grows back 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 type of bush that grows in Natrona County
C) All of these answers are correct
D) A plant that never dies and never has flowers
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) Cheatgrass
E) Spotted knapweed
  • 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) Drought
C) Lack of producers in the food chain
D) Noxious weeds
E) Climate change
  • 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) Use multiple ways to control noxious weeds
D) None of these answers is correct
E) Management of multiple 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) It's another word for environmental science
D) The variety of plants and animals in a habitat
E) All of these answers are correct
  • 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) True
B) False
  • 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) Chemical
B) Biological
C) All of these answers are correct
D) Mechanical
E) Cultural
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