Answer:
conduction
Explanation:
the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.
the process by which sound waves travel through a medium.
the transmission of impulses along nerves.
the conveying of fluid through a pipe or other channel.
Answer:
I would say scientific theory
Answer:C. Bacteria in soil and in root nodules converted free nitrogen into nitrogen compounds
Explanation:the conversion of atmospheric nitrogen into nitrates and ammonia ,which the plant can use,is called nitrogen fixation.
Bacteria which are able tofix nitrogen includes azotobacter, clostridium sp.Rhizobium can also fix nitrogen through a mutualistic relationship with the roots of legumes.
When plants die, the plant parts can be broken down into amino acid which can be oxidized to ammonia.