Q. Sound waves are _________ waves.
(A) Transverse
(B) Electromagnetic
(C) Longitudinal
(D) none of these
The answer is: (C) Longitudinal ☑
Q. The lifespan of White Blood Cells is __________ day(s).
(A) 1
(B) 2
(C) 3
(D) 4
The answer is: (A) 1 ☑
Q. The fluid part of blood is known as
(A) plasma
(B) platelets
(C) blood cells
(D) hormones
The answer is: (A) plasma ☑
Q. X-rays were discovered by
(A) Rontgen
(B) Thomson
(C) Rutherford
(D) Becquerel
The answer is: (A) Rontgen ☑
Q. The speed of light is
(A) 280,000 km/s
(B) 300,000 km/s
(C) 320,000 km/s
(D) none of these
The answer is: (B) 300,000 km/s ☑