General Knowledge : General Science QUESTIONS AND ANSWERS :: part10 : 11 to 15
Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2024 examinations :
11.Nitrogen fixation is done by |
| red algae |
| green algae |
| brown algae |
| blue-green algae |
12.The largest source of pollution in the world is |
| industrial effluents |
| sewage and garbage |
| automobile exhausts |
| herbicides and insecticides |
13.The Red Data Book is famous for |
| extinct plants and animals |
| extinct plants only |
| endangered plants and animals |
| endangered plants only |
14.Which of the following organelles is present in bacteria or prokaryotic cell ? |
| Vacuoles |
| Mitochondria |
| Ribosomes |
| Golgi bodies |
15.Hebicides are used for the elimination of |
| insects |
| pests |
| weeds |
| plant diseases |
More General Science QUESTIONS AND ANSWERS available in next pages
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