Question

Q.1A) Fill in the blanks.
(2)
1. A unique discovery of modern technology in 20th century is
2. The Industrial Revolution began in
B) Answer the following questions in one sentence.
(2)​

Answer 1

1. A unique discovery of modern technology in the 20th century is Photograph.

2. The Industrial Revolution began in the 18th century.

Answer 2

Answer:

1) photograph........