Oxygen and ozone are

Which among the following elements (metals) pollutes the air of a city having a large number of automobiles?

Alum is used as

The metal compound commonly found in Sindoor or kumkum is based on

Consider the following statements:

1. Lamba in Gujrat is famous for wind power plant.
2. Manikiran in Himachal Pradesh is famous for geothermal energy plant.

Which of the statements given above is/are correct?

Who among the following is the winner of the Wimbledon Men's Singles title 2008?