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