SSC UPSC general science MCQ GK Questions and Answers for all competitive exams UPSC SSC Bank Exams MCQ and Entrance exams Preparation Online free Gk Questions practice
100. Biologists study viruses although they are not considered living organisms. What could be the possible reasons?
1.They are causative agents of many of the dreaded diseases of humans, other animals, and plants
2.They are a source of some useful antibiotics
3.They serve as a useful tool in biotechnological research Which of the above statement/s is/are true? Select the correct answer using the codes given below.
|Answer : Option A|
105. In old age, people have to wear spectacles for reading and writing because
1.their eye lenses become weak
2.they lose the power of accommodation
3.their eye-lenses lose their magnifying power Which of the above is/are correct?
|Answer : Option B|