Invented basketball-1

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Across
  1. 4. liked or enjoyed by a large number of people
  2. 5. causing great harm or injury; very serious / very unpleasant; making you feel very unhappy, upset or frightened
  3. 6. an illness affecting humans, animals or plants, often caused by infection
  4. 8. a person, such as a soldier, a police officer or a prison officer, who protects a place or people, or prevents prisoners from escaping
Down
  1. 1. to become hard, and often turn to ice, as a result of extreme cold
  2. 2. [plural] activity that you do for pleasure and that needs physical effort or skill, usually done in a special area and according to fixed rules
  3. 3. a game played by two teams of five players, using a large ball which players try to throw into a high net hanging from a ring
  4. 7. the activity of learning or gaining knowledge