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A. Large intestine

B. Mouth

C. Small intestine

D. Spleen

A. Have its shape changed

B. Remain unaffected

C. Increase

D. Decrease

A. Safety razor

B. Safety pin

C. Safety match

D. Safety valve

A. Seismograph

B. Lactometer

C. Hydrometer

D. Crescograph

A. Its centre of gravity falls within the base

B. Its centre of gravity falls outside the base

C. It is tilted through an angle of 60°

D. It will never regain its original position

A. Radiation

B. Conduction

C. Convection

D. None of the above

A. Three

B. Five

C. Four

D. Six

A. Silicon

B. Zironium

C. Selenium

D. Sodium

A. Acetylene and hydrogen

B. Acetylene and oxygen

C. Oxygen and ethylene

D. Oxygen and hydrogen

A. Muscle cell

B. Nerve cell

C. Liver cell

D. Kidney cell