Question

6.Explain Nitrogen Cycle.What are the differences between combustible and inflammable substances?
please koi bata do class 8 jaldi please its urgent ​

Answer 1

The conversion of atmospheric nitrogen into nitrogenous compounds is nitrogen fixation.You have learnt about the bacterium Rhizobium. It is involved in the fixation of nitrogen in leguminous plants (pulses). Recall that Rhizobium lives in the root nodules of leguminous plants, such as beans and peas, with which it has a symbiotic relationship. Sometimes nitrogen gets fixed through the action of lightning. But you know that the amount of nitrogen in the atmosphere remains constant.

Rhizobium bacteria living in the root nodules of legume plants, fix nitrogen from the atmosphere.Microorganisms in the soil convert atmospheric nitrogen into ammonium compounds, thereby enabling the survival of plants and animals.Nitrogen is an essential constituent of proteins, nucleic acids, chlorophyll and vitamins.Blue green algae are able to fix nitrogen from the atmosphere.Nitrogen from the atmosphere is fixed by biological nitrogen fixers like blue green algae and some bacteria.Fungi are decomposers that degrade organic waste compounds into simple substances, ready for reuse by plants

Nitrogen cycle

Answer 2

Answer:

nittogen cyle is the process of conversion into many forms .passing through atmosphere and coming back to there from where produced

inflammable substances catch fire easily at normal temperature

cumbustible substances has a fixed temperature at which they catch fire.