In Fishes excretory Product is__________
What is the weight of the average human brain
HIV virus causes___________
Telephone was invented by__________
The Sun is at an average distance of about________ million kilometers away from Earth
UPS is now widely use in households What does UPS stands for
Which rays are trapped in our galaxy by magnetic waves
According to Einsteins general theory of relativity the universe:________________
There is no connection of supernova explosion with___________
In human osmoregulation takes place by___________
