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Microbes in Human Welfare MCQs
Class XII Biology
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NCERT Based
•
NEET Practice
📘 Concept Based
📝 Exam Level
🤖 AI Explanations
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455 questions in this chapter
Question 451 of 455
📘 CLASS XII
Biofertilisers are organisms that enrich the ____ quality of the soil.
Biofertilisers are organisms that enrich the nutrient quality of the soil.
Question 452 of 455
📘 CLASS XII
Cyanobacteria are autotrophic microbes that can fix atmospheric ____.
Cyanobacteria... many of which can fix atmospheric nitrogen.
Question 453 of 455
📘 CLASS XII
The overall goal of using biofertilisers is to reduce dependence on ____ fertilisers.
Farmers use these regularly in their fields to replenish soil nutrients and to reduce dependence on chemical fertilisers.
Question 454 of 455
📘 CLASS XII
The virus shown in Figure 8.2(a) is a ____.
Figure 8.2 (a) shows a bacteriophage.
Question 455 of 455
📘 CLASS XII
The microbial cultures grown on nutritive media are useful for studies on ____.
Such cultures are useful in studies on micro-organisms.
