Question

Fill in the blanks
1.________ are found in soil,water, and in the alimentary canal of many animals.
2.Isolation of ______ was possible only after the discovery of electron microscope in 1931.
3.The bacterium present in roof nodules of many leguminous plants responsible for___________ is________.

If I like your answers I will mark u as brainlest

Answer 1

1
1. chlorine 2. Cell 3.compound is nitrogen