List three important nitrogen containing fertilizers.

Name two potassium containing fertilizers.

What is the importance of nitrogen?

Urea is a very important nitrogenous fertilizer. Its formula is CON2H4 . calculate the percentage of nitrogen in urea.

List three phosphorus containing fertilizers.

List three omnivores.

List three important distinguishing characters of arthropods.

List three important distinguishing characters of phylum Arthropoda.

List the important components of an ecosystem.

List three involuntary actions

List any three important steps to be kept in mind for successful beekeeping.