Options:
- A. Brain
- B. Heart
- C. Kidneys
- D. Lungs
View Answer
B. Heart
Everyday Science
The primary function of the feathers in birds is to _________?
Options:
- A. Provide insulation for preserving body heat
- B. Provide striking surface to the wings for flying
- C. Make the body surface waterproof
- D. impart coloration for species as well as sex recognition
View Answer
B. Provide striking surface to the wings for flying
An instrument to detect the purity of milk is____________?
Options:
- A. Lactometer
- B. Hygrometer
- C. Manometer
- D. Sonometer
View Answer
A. Lactometer
Instrument used for measuring very high temperature is __________?
Options:
- A. Pyroscope
- B. Pyrometer
- C. Seismograph
- D. Xylometer
View Answer
B. Pyrometer
1 light year = ?
Options:
- A. 9.5
- B. 9.5
- C. 9.5
- D. 9.5
View Answer
C. 9.5
The good sources of Vitamin-B Complex are?
Options:
- A. green leafy vegetables
- B. seeds
- C. fresh vegetables and fruits
- D. sea foods
View Answer
B. seeds
In night, when photosynthesis is stopped, plants__________?
Options:
- A. take in Carbon Dioxide
- B. give off Oxygen
- C. give off Carbon Dioxide
- D. None of these
View Answer
C. give off Carbon Dioxide
One of the main function of the earth
Options:
- A. Prevent global warming
- B. Filter out ultraviolet rays
- C. Absorb pollution
- D. All of the above
View Answer
B. Filter out ultraviolet rays
Dry ice is ___________?
Options:
- A. Methane hydrate
- B. Liquid Nitrogen
- C. Solid Carbon dioxide
- D. Frozen Water
View Answer
C. Solid Carbon dioxide
The half life of a radioactive element is 8-days. How long it take to reduce it from 10 mg to 5 mg?
Options:
- A. 4 days
- B. 12 days
- C. 16 days
- D. 8 days
View Answer
D. 8 days