Daily science
1. Which of the following vitamins is helpful for coagulation of blood ?
Ans : K
2. For purifying drinking water, alum is used–
Ans : for coagulation of mud particles
3. A weather balloon is not fully inflated on the ground because–
Ans : the air inside the balloon expands as it rises and may burst
4. Vitamin B12 is most useful for combating–
Ans : anaemia
5. A transistor is most likely to be found in a–
Ans :hearing aid
6. A person born with the inner ear missing–
Ans : would never be able to hear sound
7. The possibility of hereditary variation is greatest when–
Ans : organisms reproduce sexually
8. Steel is more elastic then rubber because–
Ans : ratio of stress to strain is more
9. The chief purpose if crop rotation is to check the loss of topsoil–
Ans : pf its mineral content
10. Which of the following acts as a resistance against disease in the body ?
Ans : White corpuscles
Ans : K
2. For purifying drinking water, alum is used–
Ans : for coagulation of mud particles
3. A weather balloon is not fully inflated on the ground because–
Ans : the air inside the balloon expands as it rises and may burst
4. Vitamin B12 is most useful for combating–
Ans : anaemia
5. A transistor is most likely to be found in a–
Ans :hearing aid
Ans : would never be able to hear sound
7. The possibility of hereditary variation is greatest when–
Ans : organisms reproduce sexually
8. Steel is more elastic then rubber because–
Ans : ratio of stress to strain is more
9. The chief purpose if crop rotation is to check the loss of topsoil–
Ans : pf its mineral content
10. Which of the following acts as a resistance against disease in the body ?
Ans : White corpuscles