SaraNextGen Study App [2022-23]
Last Updated On 23-10-2022 - By Sara

Which of the following statement is correct?

1)

Cyanobacteria such as Anabaena and Nostoc are important mobilisers of phosphates and potassium for plant nutrition in soil

2)

At present it is not possible to grow maize without chemical fertilisers

3)

Extensive use of chemicals fertilisers may lead to eutrophication of nearby water bodies

4)

Both Azotobacter and Rhizobium fix atmospheric nitrogen in root nodules of plants


Question ID - 100357 :-

Which of the following statement is correct?

1)

Cyanobacteria such as Anabaena and Nostoc are important mobilisers of phosphates and potassium for plant nutrition in soil

2)

At present it is not possible to grow maize without chemical fertilisers

3)

Extensive use of chemicals fertilisers may lead to eutrophication of nearby water bodies

4)

Both Azotobacter and Rhizobium fix atmospheric nitrogen in root nodules of plants

1 Answer
5876 Votes
3537

Answer Key : (3) -

Excess fertilizer in the environment, especially nitrogen and phosphorus, can pollute local ground water as well as lakes and streams, resulting in eutrophication



Next Question :

Turpentine oil is obtained from

1)

Pinus longifolia

2)

Melia azadirachta

3)

Eucalyptus

4)

All of these


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