Aestivation is seen in
Choose the correct answer from the codes given below.
Assertion (A) : The pyramid of grassland ecosystem is upright.
Reason (R) : The producers are maximum in number and tertiary consumers are least in number.
Which of the following is correct
The velocity of sound is maximum in
A particle executes S.H.M. The acceleration of the particle is maximum
The valence electron of the impurity atom that is to be added to germanium crystal so as to make it a n-type semiconductor is