44) Edison did not attend school at all.
- پاسخ: a) True
45) Edison finally lost his interest in inventing things.
- پاسخ: b) False
46) Where did Edison learn science?
- پاسخ: a) in the library
47) How did Edison find answers to problems? By …….
- پاسخ: b) Doing many experiments
48) How many inventions did Edison have?
- پاسخ: More than 1,000 inventions.
49) When did Edison lose his hearing?
- پاسخ: At the age of 12.
