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  • What are basic needs?


    Factors essential for us to live.

    basic_needs survival
  • What did people of the Stone Age need to survive?


    Air, water, and food.

    stone_age survival
  • What is the first basic human need?


    Clean air.

    basic_needs air
  • What causes air pollution?


    Exhaust fumes, factory smoke, indoor smoke, and cigarette smoke.

    pollution air
  • Why is clean air important?


    It is needed for life and health.

    health air
  • What is necessary for human survival besides air?


    Water.

    basic_needs water
  • Where can usable water be found?


    Rivers, inland reservoirs, ponds, and springs.

    water resources
  • What happens if polluted water is used?


    It is harmful to health.

    health water
  • What does food provide us with?


    Nutrition for energy, growth, and disease protection.

    food nutrition
  • What type of diet should we consume?


    A clean, healthy, and balanced diet.

    food diet
  • What harmful substances are used in food production?


    Chemicals.

    food health
  • What did Stone Age people use for shelter?


    Caves or tree burrows.

    stone_age shelter
  • What materials did Stone Age people use to make tools?


    Stones and animal bones.

    stone_age tools
  • What did Stone Age people use tools for?


    To hunt animals for food.

    stone_age hunting
  • What did Stone Age people use for clothing?


    Leaves and animal skins.

    stone_age clothing
  • What discovery changed the Stone Age people's diet?


    Generating fire.

    stone_age fire
  • What did cooking meat allow Stone Age people to do?


    Eat cooked meat instead of raw meat.

    stone_age cooking
  • What advancements did Stone Age people make?


    Preserving meat and better clothing.

    stone_age advancements
  • What ages did man progress through after the Stone Age?


    Nomad Age, Agricultural Age, Industrial Age.

    history ages
  • How did the need for houses change over time?


    It diversified with social progress.

    housing social_progress