Any two examples in which infrasound is produced.

Give any two examples of plants in which respiratory roots are present.

Give two examples. Basic radicals

Two examples of Rock Salt

Give two examples of : Inorganic compound.

State whether the following statements are True or False: Infrasound is produced before earthquakes by vibrations of the earth's surface.

Give examples of any two metals which are generally found in the free state in nature.

Observe the given figure and answer the following questions. a. What does the given figure indicate ? b. Name any fuel produced by this method. c. Identify 'X' in the given figure. d. Give any two examples of plants used for production of fuel by this method. e. Name the process by which glucose is converted into liquid fuel in this method.

Give two examples of : Metalloid.

Any two sexual diseases.

Answer the following : State any two examples of microbial pesticides used in organic farming.