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