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