Questions

Kandla is Tidal port, Kolkata Haldia is  a  riverine  port,  Tuticorin  is  a river  port,  Marmagao  is  in  Goa,  is situated   on   estuary   on   eastern coast of India. Delta formation and estuary    formation    take    place mostly  on  western  coast  and  Goa is in western coast. 

Acid Precipitation or Acid rain is caused by a mix of Sulfur Dioxide, Carbon Dioxide, Nitrogen Oxides.

A Chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as Acid Rains.

As there is no atmosphere surrounding the moon, the second from any band that is played there cannot travel outwards there is no material medium surrounding if for its propagation.

The first session of Indian National Congress was held from 28–31 December 1885, in Mumbai and was attended by 72 delegates. Womesh Chandra Bonnerjee was the first president of the Indian National Congress (INC), a voice of Indian opinion to the British government.

A traffic light.

It has three 'eyes' (the red, orange and green lights) and the leg is the pole holding it up. Many people beg the light to stay green as they’re approaching.