Match List I with List II

Name the most important weather element –

On what basis are algae further categorized into different classes among the given options?

If there is provision for only one irrigation, then at which stage in wheat the farmer should irrigate the crop? 

Match List I with List II

Stroma and grana membranes are present in

Sweet potato aphid attacks mainly on ................................?

Identify the 'green-house gas'.

The precursor of auxin is _____

Which of following fungi is not used as a bio-control agent of plant diseases?