Q. What is double circulation? What is the benefit of double circulation?

Q. Why do white flowers bloom at night?

Q. Write the structural and functional units of muscle.

Q. What do you mean by germination of seeds?

Q. Enumerate the demerits of an electoral competition.

Q. What do you mean by ‘non-recurring expenses’?

Q. Are mass and weight are vector or scalar quantities? Why?

Q. What is the significance of the supercomputer ‘Param’?

Q. Name the acid present in an ant sting and give its chemical formula. Also give the common method to get relief from the discomfort caused by the ant sting.

Q. What is the basis of Modern Periodic law ?