Aha Trivia Stuff Everyone Should Know

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Stuff Every Conservation Scout Should Know: free practice in 30-second cards

Stuff Every Conservation Scout Should Know

Practice facts for the Soil and Water Conservation merit badge. Not an official Scouting America credential.

Start Stuff Every Conservation Scout Should Know ⚡ Today's sprint 🎙️ Voice mode

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Free. It plays the first 50 cards; players subscribe at Aha Trivia for the rest. Every embed code

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Free to start, no sign-up. 65 cards so far. One Knowledge Score and day streak across all your courses.

Questions people ask

Is this practice test free?

Yes. The first 50 cards are free for everyone with no sign-up, each with the answer, why it is right and its sources. Aha Trivia members get all 65 cards and timed practice exams.

How many practice questions are there?

65 practice questions so far. Each one is a 3-choice card that takes about 30 seconds, and the course grows as new cards pass our source checks.

Where do the answers come from?

Every card lists the sources it was checked against, and each answer explains why it is right. If you think an answer is wrong, tap "Challenge this answer" in the game and it gets reviewed.

Can I study in the car?

Yes. Voice mode reads the questions out loud and you answer by voice.

Try 3 cards

  1. What is soil mainly made of?
    Show the answer

    Weathered rock and decayed plant material. Soil forms as rock breaks down and dead plants decay into it.

  2. Which three nutrients are the main ones in fertile soil?
    Show the answer

    Nitrogen, phosphorus, and potassium. These three are the main plant nutrients in fertile soil.

  3. What is soil erosion?
    Show the answer

    The wearing away of soil by wind or water. Erosion is soil being worn away and moved by forces like wind and water.

All 65 practice questions

The first 50 are free, with the answer, why it's right and the official sources. The other 15 (🔒) open with a membership (every test). Or play them as a game and track what you've learned.

Show all 65 questions
  1. What is soil mainly made of?
  2. Which three nutrients are the main ones in fertile soil?
  3. What is soil erosion?
  4. Why does soil erosion matter to people?
  5. What is a watershed?
  6. What is a river basin?
  7. Why should people in a river basin care about land and water use?
  8. What is an aquifer?
  9. Why are aquifers important to communities?
  10. What does the hydrologic cycle show?
  11. What is percolation?
  12. What is capillary action in soil?
  13. What is transpiration?
  14. How does removing vegetation affect runoff?
  15. What is water pollution?
  16. What is primary water treatment?
  17. What is secondary waste treatment?
  18. What does biochemical oxygen demand measure?
  19. What is contour plowing?
  20. What is terrace farming?
  21. What is a windbreak?
  22. What do cover crops do for soil?
  23. What is conservation tillage?
  24. What is crop rotation?
  25. What causes soil salinity?
  26. How do earthworm casts help soil?
  27. How do earthworm burrows help soil?
  28. What does soil conservation aim to prevent?
  29. What can deforestation lead to?
  30. What is a grass way used for?
  31. What is keyline design?
  32. What happens when repeated plowing degrades soil?
  33. What can pesticides do to soil and water?
  34. What does no-till farming help do?
  35. How much more water can soil hold with each one percent more organic matter?
  36. What is mineralization in soil?
  37. How can flooding help an alluvial plain?
  38. What do salt-tolerant plants like saltbush help do?
  39. What role does soil carbon play?
  40. Why is soil biodiversity important?
  41. What can degraded soil require to produce high yields?
  42. What is a practical way to reduce runoff on a slope?
  43. Why is topsoil so valuable for farming?
  44. How much can contour plowing raise crop yields?
  45. Where is terraced farming most common?
  46. How do trees and shrubs at field edges prevent erosion?
  47. Where should a windbreak be placed to fight wind erosion?
  48. Why can evergreen windbreaks protect soil all year?
  49. Besides nutrients, what else do cover crops help suppress?
  50. How long can damaged soil take to recover?
  51. Why do critics say no-till can be hard for growers? 🔒
  52. What does salt buildup do to soil structure? 🔒
  53. About how much of Earth's arable land does salinity affect? 🔒
  54. What can humic acids do about excess salination? 🔒
  55. How do earthworm casts compare to surrounding soil in available nitrogen? 🔒
  56. What fraction of animal species live underground? 🔒
  57. What happens to nitrogen and pollutants when soil lacks structure? 🔒
  58. What does the U.S. Natural Resources Conservation Service Code 330 define? 🔒
  59. What do European policies like the Common Agricultural Policy target? 🔒
  60. What simple governance hurdle concerns how we value land? 🔒
  61. What does a windbreak's density affect? 🔒
  62. What can no-till methods do to damaged soil? 🔒
  63. What do no-till and cover crops act as for nitrogen? 🔒
  64. What does the weight of earthworm casts show about worms? 🔒
  65. What does the 2020 FAO report say about soil biodiversity knowledge? 🔒