Radioactivity is a phenomenon of the spontaneous emission...
Radioactivity is a phenomenon of the spontaneous emission of
protons (alpha particles)
electrons (beta particles)
gamma rays (short wave electromagnetic waves)
All of the above
Correct answer is D
No explanation has been provided for this answer.
Which gland is responsible for producing the hormone insulin? ...
The special name of the part labelled II is ...
Which of the following structures is not essential in a wind pollinated flower? ...
The excessive use of agro-chemicals could lead to the pollution of ...
A climax community is characterized by ...
Which of the following vertebrates has the most simple structured heart? ...
At what level of organisation is the Amoeba? ...
Which of the following organisms has lost the pentadactyl limb structure? ...