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