Options:
- A. Air temperature
- B. Relative humidity
- C. Air pressure
- D. Air density
View Answer
C. Air pressure
Everyday Science
What is the mass of the Sun?
Options:
- A. 1.5
- B. 1.98
- C. 4.5
- D. 8
View Answer
B. 1.98
Which of the followong spacecrsft enabled man to step on the moon first?
Options:
- A. Spuntnik I
- B. Luna II
- C. Vostok I
- D. Apollo XI
View Answer
D. Apollo XI
A loudspeaker changes _________ energy into sound energy.
Options:
- A. Chemical
- B. Electrical
- C. Light
- D. Kinetic
View Answer
B. Electrical
Boiling of an egg is a change which is__________?
Options:
- A. Physical
- B. Chemical
- C. Physiological
- D. Morphological
View Answer
B. Chemical
Approximate age of milky-way is ________?
Options:
- A. 16.5 billion years
- B. 15.5 billion years
- C. 13.5 billion years
- D. 14.5 billion years
View Answer
C. 13.5 billion years
The Time taken for sunlight to reach the Earth is___________?
Options:
- A. 700 sec
- B. 8hrs 20 mins
- C. 8 mins 20 sec
- D. 8 mins
View Answer
C. 8 mins 20 sec
In 2013, Planck measured the age of the universe at ___________?
Options:
- A. 13.82 billion years
- B. 4.53 billion years
- C. 4.6 billion years
- D. 4.53 billion years
View Answer
A. 13.82 billion years
At what time of day is the relative humidity normally at a minimum ________________ ?
Options:
- A. When the air temperature is highest
- B. Just before sunrise
- C. About midnight
- D. When the air temperature is lowest
View Answer
A. When the air temperature is highest
Melanoma (skin cancer) is associated with ______________?
Options:
- A. ozone accumulation
- B. ozone depletion
- C. acid rain
- D. allergens
View Answer
B. ozone depletion