Question

[20 Points]
The Federal Bureau of Investigation must find ___ evidence before it can declare that a plane crash has been caused by a bomb.
A. provocative
B. tangible
C. sonic
D. vociferous

Answer 1

The Federal Bureau of investigation must find the B) Tangible evidence before it can declare that a plane crash has been caused by a bomb. 

Answer 2

it is tangible B
hope this helps ;)