There is no diagram below so I can't answer the question
It has been hypothesized, and some studies have supported the conjecture,
that certain species of insects and birds are able to sense the direction of external
magnetic fields.
I don't think there is any such notion where human beings are concerned.
(D)
Explanation:
The more massive an object is, the greater is the curvature that they produce on the space-time around it.
"The proton and neutron have nothing to do with the isotope little billy"
Answer:
It's an Angle of incidence that provides a 90° angle but is also refracted at the same time. it's used to find the water-air boundary (which is 48.6 degrees). in addition, its an angle of incidence value.
