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