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