Noxious Weeds
  • 1. What is an ecosystem?
A) It's another word for environmental science
B) The water cycle in a given area
C) All of the living and nonliving things that affect a given habitat
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) None of these answers is correct
B) Converts the sun's energy to food
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) Any plant growing where it is not wanted
B) Plants of foreign origin that injure the environment in which they are introduced
C) A type of reed used to make furniture
D) A herb used by the ancient Egyptians to mummify the bodies of Pharaohs
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) Any plant growing where it is not wanted
D) A weed that always smells really bad
  • 5. How do noxious weeds affect our environment?
A) All of these answers are correct
B) Reduce biodiversity
C) Soil erosion
D) Fire hazards
E) Destroy habitat
  • 6. How do noxious weeds reduce biodiversity?
A) By making more soil nutrients to enrich the soil
B) By helping native plants grow better
C) By creating monoculture's
D) By isolating fungi and bacteria that would kill off other plants
  • 7. How do noxious weeds destroy habitat?
A) They start fires
B) They provide food for predators
C) They actually help the environment by killing off unwanted insects
D) They can crowd out native plants
E) None of these answers are correct
  • 8. What is allelopathy?
A) The study of the sea animals called Allelos
B) Using Aloe Vera plants to heal injuries
C) The study of all elements in an ecosystem
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) Cheatgrass
C) Spotted knapweed
D) Scottish thistle
E) Dalmatian toadflax
  • 10. What noxious weed produces 1000 seeds per year per plant?
A) Leafy spurge
B) Salt cedar
C) Cheatgrass
D) Perennial pepperweed
E) Spotted knapweed
  • 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 blooms every other year
D) A plant that grows for two years before dying
  • 12. What is an annual plant?
A) A plant that never flowers
B) A plant that grows back every year
C) Noe of these answers are correct
D) A plant that blooms every year
E) A plant that dies off 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 plant that comes grows back every year
E) A type pf weed related to pepperweed
  • 14. What is the number one noxious weed in the world?
A) Leafy spurge
B) Spotted knapweed
C) Cheatgrass
D) Canada thistle
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) Climate change
D) Hunting
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) Use multiple ways to control noxious weeds
D) Management of multiple weeds
E) Using chemicals to destroy all weeds
  • 18. Noxious weeds can directly or indirectly harm public health
A) True
B) False
  • 19. What is biodiversity?
A) The variety of plants and animals in a habitat
B) All of these answers are correct
C) The life cycle of plants and animals in a community
D) A habitat that includes two types of biomes
E) It's another word for environmental science
  • 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) True
B) False
  • 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) Cultural
B) Mechanical
C) All of these answers are correct
D) Biological
E) Chemical
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