Why are Bohr's orbits called statationary states?

Why are rhizoids not called roots?

What is Bohr's radius?

Why are plants called autotrophs?

Why are the producers called transducers?

Why transistor is so called?

Why are animals called consumers?

Show that the radius of Bohr's orbit is directly proportional to the square of the principal quantum number.

Why are alkenes called olefins ?