Natural radioactivity was discovered by
...Natural radioactivity was discovered by
Marie Curie
Ernest Rutherfor
Henri Becquerel
Enrico Fermi
Correct answer is C
No explanation has been provided for this answer.
Which of the following pairs is part of the electromagnetic spectrum? I. Radio waves II...
blowing air over a liquid aids evaporation by ...
Which of the following is/are characteristics of sound? I. Pitch II. Loudness III. Quality IV....
If the angle between two vector P and Q is Oo, the vectors are said to...