Name the person who started appiko movKHOent in south.

Show by simple diagramhow airborne diseases are easire to catch the person who is near the infected person.

Oxygen cylinders are needed by the persons who are going to climb the mountain. Explain why?

Name the tropical sugarcane variety grown in South India. How as it helped in improving the sugarcane quality grown in North India ?

There are 40 scholars in a class, out of which 10 are sports- persons. Three scholars are selected at random out of them. Find the probability distribution for the selected persons who are sports-persons. Find the mean of the distribution.

There is a group of 50 people who are patriotic out of which 20 believe in non-violence. Two persons are selected at random out of them, write the probability distribution for the selected persons who are non-violent. Also find the mean of the distribution. Explain the importance of non-violence in patriotism.

Give the name of the person and his experimental specimen who carried out the qualitative inheritance for the first time.

Name the scientist who explained photoelectric effect.