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
Everyday Science
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
what is the height of The atmosphere layer mesosphere?
Options:
- A. 85 km
- B. 50 km
- C. 40 km
- D. 10 km
View Answer
A. 85 km
Water vapor is ______________?
Options:
- A. A gas
- B. A cloud droplet
- C. A rain drop
- D. A snowflake
View Answer
A. A gas
In human body there are_________________kinds of bones?
Options:
- A. 3
- B. 4
- C. 5
- D. 6
View Answer
B. 4
The top atmosphere of the Earth directly reflects back into space nearly what part of the total amount of sun
Options:
- A. 10%
- B. 20%
- C. 30%
- D. 50%
View Answer
C. 30%
The setting sun often looks oval in the shape because of__________?
Options:
- A. The fact that sun really becomes oval in the evening
- B. Refraction of rays of sun passing through the atmosphere
- C. Optical Illusion
- D. Dispersion
View Answer
B. Refraction of rays of sun passing through the atmosphere
The horizontal rows of the periodic table are called ______?
Options:
- A. Groups
- B. Periods
- C. Sets
- D. Matrices
View Answer
B. Periods
What is the effect of height increase over temperature?
Options:
- A. Temperature increase
- B. Temperature decrease
- C. Remains constant
- D. None
View Answer
B. Temperature decrease