{
  "id": "5de307a0-2fab-58dd-a0b6-c55b947408d4",
  "slug": "topic-5-land",
  "title": "Topic 5: Land",
  "course": "IB ESS",
  "level": "SL",
  "topic": 5,
  "questionCount": 15,
  "page": "https://splycr.com/ib-ess/topic-5-land",
  "data": "https://splycr.com/library/topic-5-land.json",
  "play": "https://splycr.com/?set=5de307a0-2fab-58dd-a0b6-c55b947408d4",
  "section": {
    "name": "Topic 5: Land",
    "page": "https://splycr.com/ib-ess/land"
  },
  "source": {
    "name": "Biology by Bradford",
    "href": "https://biologybybradford.com"
  },
  "questions": [
    {
      "number": 1,
      "question": "A dynamic system with inputs, outputs, storages and flows of organic and inorganic components, water and air?",
      "answer": "Soil",
      "wrongOptions": [
        "Humus",
        "Leaching",
        "Monoculture"
      ]
    },
    {
      "number": 2,
      "question": "Vertical cross-section of soil showing distinct horizontal layers formed over time?",
      "answer": "Soil profile",
      "wrongOptions": [
        "Soil texture",
        "Sustainable diet",
        "Soil horizons"
      ]
    },
    {
      "number": 3,
      "question": "Distinct layers of a soil profile, lying one above another, that differ in colour and composition?",
      "answer": "Soil horizons",
      "wrongOptions": [
        "Soil conservation",
        "Food security",
        "Soil texture"
      ]
    },
    {
      "number": 4,
      "question": "Dark organic matter formed by the partial decay of plant and animal remains; improves soil structure and holds nutrients?",
      "answer": "Humus",
      "wrongOptions": [
        "Soil",
        "Leaching",
        "Monoculture"
      ]
    },
    {
      "number": 5,
      "question": "The relative proportions of sand, silt and clay particles in a soil, often plotted on a triangular diagram?",
      "answer": "Soil texture",
      "wrongOptions": [
        "Sustainable diet",
        "Green Revolution",
        "Soil horizons"
      ]
    },
    {
      "number": 6,
      "question": "Loss of dissolved minerals from soil by water moving downward through the profile?",
      "answer": "Leaching",
      "wrongOptions": [
        "Monoculture",
        "Malnutrition",
        "Salinization"
      ]
    },
    {
      "number": 7,
      "question": "Organisms (e.g. earthworms) that fragment dead organic matter into smaller pieces?",
      "answer": "Detritivores",
      "wrongOptions": [
        "Decomposers (saprotrophs)",
        "Humus",
        "Leaching"
      ]
    },
    {
      "number": 8,
      "question": "Organisms (e.g. bacteria, fungi) that chemically break down dead organic matter, releasing nutrients?",
      "answer": "Decomposers (saprotrophs)",
      "wrongOptions": [
        "Detritivores",
        "Humus",
        "Leaching"
      ]
    },
    {
      "number": 9,
      "question": "Accumulation of salts in soil, often caused by irrigation, reducing fertility?",
      "answer": "Salinization",
      "wrongOptions": [
        "Malnutrition",
        "Detritivores",
        "Soil texture"
      ]
    },
    {
      "number": 10,
      "question": "Methods such as terracing, contour ploughing and windbreaks that reduce soil erosion and degradation?",
      "answer": "Soil conservation",
      "wrongOptions": [
        "Sustainable diet",
        "Soil texture",
        "Green Revolution"
      ]
    },
    {
      "number": 11,
      "question": "Physical and economic availability of food allowing all individuals a balanced, healthy diet?",
      "answer": "Food security",
      "wrongOptions": [
        "Green Revolution",
        "Soil conservation",
        "Sustainable diet"
      ]
    },
    {
      "number": 12,
      "question": "1950s–60s increase in crop yields using high-yielding varieties, irrigation, fertilizers and pesticides?",
      "answer": "Green Revolution",
      "wrongOptions": [
        "Soil conservation",
        "Soil texture",
        "Sustainable diet"
      ]
    },
    {
      "number": 13,
      "question": "Cultivation of a single crop species over a large area; reduces biodiversity and resilience?",
      "answer": "Monoculture",
      "wrongOptions": [
        "Leaching",
        "Humus",
        "Salinization"
      ]
    },
    {
      "number": 14,
      "question": "Diseases caused by insufficient nutrient intake (undernutrition) or excessive/imbalanced intake (overnutrition)?",
      "answer": "Malnutrition",
      "wrongOptions": [
        "Detritivores",
        "Salinization",
        "Soil horizons"
      ]
    },
    {
      "number": 15,
      "question": "Diet with a low environmental impact that could feed the whole world population within planetary boundaries, e.g. the EAT–Lancet planetary health diet?",
      "answer": "Sustainable diet",
      "wrongOptions": [
        "Soil horizons",
        "Soil conservation",
        "Green Revolution"
      ]
    }
  ]
}