(A) Electrical signals through wires (X)
(B) Light signals through optical fibers (X)
(C) Radio waves through air (X)
(D) Any combination of these three (✔)
Answer: Information Can Be Sent Over Long Distance In The Form Of Any combination of these three.
(A) Marconi (X)
(B) Galileo (X)
(C) Edison (X)
(D) Graham Bell (✔)
Answer: Telephone Was invented In 1876 In America By Graham Bell.
(A) Synthetic rubber (X)
(B) Nylon (✔)
(C) Cellulose (X)
(D) Protien (X)
Answer: Polyamides Are Synthetic Polymers Commonly Known As Nylon.
(A) Sand (X)
(B) Silt (X)
(C) Clay (✔)
(D) Plaster Of Paris (X)
Answer: The Usual Raw Material For Ceramics Generally Found Beneath The Top Soil Is Clay.
(A) Increase (✔)
(B) Decrease (X)
(C) Increase to 7 and then decrease (X)
(D) Decrease to 7 and then increase (X)
Answer: If An Alkali Is Added / Mixed Slowly To An Acidic Solution,The PH Of The Acidic Solution Will Increase.
(A) Hazrat Safia (RA) (X)
(B) Hazrat Zainab bint Jahsh (RA) (X)
(C) Hazrat Umme Habiba (RA) (✔)
(D) Hazrat Maimoona (RA) (X)
Answer: Hazrat Umme Habiba (RA)