Which of the following periods has generally been considered to be the 'Little Ice Age' ?

Which one of the following is not correctly matched? Green House Gas – Source

The ‘Ramsar Convention’ relates to which one of the following areas?

Which one of the following atmospheric changes takes place due to green house effect?

Methane gas is emitted from which of the following sources?

Which of the following is not related to the astronomical theories of climate change ?