Which of the following is not responsible for nitrogen fixation?
a. Action of lightning on atmospheric nitrogen and oxygen
b. industrial production of nitrohen based fertilisers
c.rhizobium bacteria found in the root nodules of clover plants
dentrifying bacteria found in the soil
Help with the answer and why the other questions are not right?
Its C...Nodules of certain plants such as clover fix Nitrogen to the soil...thats the reason farmers grow cver ...then plow it back into the soil..Natural source of Nitrogen...dontknow about the others...
To determine the correct answer, let's examine each option:
a. Action of lightning on atmospheric nitrogen and oxygen: Lightning can convert atmospheric nitrogen and oxygen into nitrogen oxides, which can then dissolve in water to form nitric acid. This nitric acid can come down to the ground as rainfall, providing a source of fixed nitrogen for plants. Therefore, this option is responsible for nitrogen fixation.
b. Industrial production of nitrogen-based fertilizers: The industrial production of nitrogen-based fertilizers, such as ammonia or nitrates, does not directly involve nitrogen fixation. These fertilizers are typically produced using the Haber-Bosch process, which combines nitrogen gas from the atmosphere with hydrogen from natural gas. So, this option is not responsible for nitrogen fixation.
c. Rhizobium bacteria found in the root nodules of clover plants: Some leguminous plants, like clover, form a symbiotic relationship with rhizobium bacteria. These bacteria reside in the root nodules of the plants and convert atmospheric nitrogen into a usable form through a process called biological nitrogen fixation. Therefore, this option is responsible for nitrogen fixation.
d. Denitrifying bacteria found in the soil: Denitrifying bacteria convert nitrate or nitrite back into atmospheric nitrogen gas, completing the nitrogen cycle. They play a role in denitrification, which is the opposite process of nitrogen fixation. Therefore, this option is not responsible for nitrogen fixation.
Based on this analysis, the correct answer is (b) industrial production of nitrogen-based fertilizers. This option does not involve nitrogen fixation.