Who was the discoverer of radioactivity?
A. Rutherford
B. Thomson
C. Kelvin
D. Becquerel
Which substance has the highest density?
A. Steel
B. Copper
C. Platinum
D. Osmium
The part of blood having fluid is __________?
A. Blood cell
B. Platelets
C. Plasma
D. None of these
How much amount of sodium chloride express the salinity of seawater?
A. 1 kg
B. 10 grams
C. 1 gram
D. 10 kg
Dry ice is also known as _________.
A. Solid Hydrogen
B. Solid Carbon Dioxide
C. Solid Oxygen
D. Solid Nitrogen
Which is the best source of Vitamin B complex?
A. fresh vegetables and fruits
B. seeds
C. green leafy vegetables
D. seafoods
How much is percent water present on Earth?
A. 71%
B. 67%
C. 61%
D. 76%
Which of the following substances are essential for the growth of plants?
A. N, K
B. N, C, P
C. N,P, K,
D. N, S, P
Which element is absent in Earth Crust?
A Aluminum
B. Radium
C. Silicon
D. Carbon
Dr. Abdu-s-Salam unified which two forces?
A. Gravitational force and weak nuclear force
B. The Electromagnetic force and the weak nuclear force
C. Electromagnetic force and gravitational force
D. The Weak nuclear force and the strong nuclear force