In the “Sacrilegious wars”, when Prophet Muhammad (PBUH) was 20 years of age, Quresh and their allies were lead by
A Harb bin Umayah
B Abu Jihal
C Abu Lahab
D None
The energy which is unavailable in the system is called____?
A Minute energy
B Thermal energy
C Entropy
D None
Which atmospheric layer contains ions and helps in wireless communication___?
A Troposphere
B Mesosphere
C Thermosphere
D None
The rotation of earth is what causes___?
A A full moon
B The tides
C Day and night
D The seasons
The blue color of Sky is due to _____
A Interference of light rays
B Reflection of light rays
C Refraction of light rays
D Scattering of light rays
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