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Noxious Weeds
Contributed by: Ochs
  • 1. What is an ecosystem?
A) The water cycle in a given area
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) 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) It eats consumers
B) Absorb excess water from the soil
C) To provide beauty to the other plants around it
D) Converts the sun's energy to food
E) None of these answers is correct
  • 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) Plants of foreign origin that injure the environment in which they are introduced
E) A herb used by the ancient Egyptians to mummify the bodies of Pharaohs
  • 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) Fire hazards
C) Soil erosion
D) Reduce biodiversity
E) Destroy habitat
  • 6. How do noxious weeds reduce biodiversity?
A) By isolating fungi and bacteria that would kill off other plants
B) By helping native plants grow better
C) By creating monoculture's
D) By making more soil nutrients to enrich the soil
  • 7. How do noxious weeds destroy habitat?
A) None of these answers are correct
B) They actually help the environment by killing off unwanted insects
C) They provide food for predators
D) They can crowd out native plants
E) They start fires
  • 8. What is allelopathy?
A) The study of the sea animals called Allelos
B) The study of all elements in an ecosystem
C) A chemical that can prevent the growth of other plants
D) Using Aloe Vera plants to heal injuries
  • 9. What noxious weed is the number one concern in Natrona County?
A) Leafy spurge
B) Scottish thistle
C) Dalmatian toadflax
D) Cheatgrass
E) Spotted knapweed
  • 10. What noxious weed produces 1000 seeds per year per plant?
A) Salt cedar
B) Leafy spurge
C) Cheatgrass
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 blooms every other year
C) A plant that has two main stems
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 never flowers
C) A plant that blooms every year
D) A plant that grows back every year
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) Cheatgrass
C) Spotted knapweed
D) Leafy spurge
E) Salt cedar
  • 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) Lack of producers in the food chain
B) Drought
C) Hunting
D) Climate change
E) Noxious weeds
  • 17. What is integrated weed management?
A) None of these answers is correct
B) A way to destroy all of the weeds in an area at one time
C) Management of multiple weeds
D) Using chemicals to destroy all 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) 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) It's another word for environmental science
E) The life cycle of plants and animals in a community
  • 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) 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) Cultural
B) Mechanical
C) Chemical
D) All of these answers are correct
E) Biological
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