Which statement best expresses the central idea of the text?

A
Math plays a vital role in scientists’ search for alien life as it helps them determine where and when life might exist and communicate with it.
B
Math is a language that everyone understands on Earth, and it is likely that math is the foundation of all alien languages as well.
C
While some scientists rely on math to contact aliens, it plays a larger role in general space exploration by helping astronomers get to space.
D
While searching for alien life with math is exciting, scientists should be focusing on finding any form of alien life, not just intelligent ones.

Which of the choices are parts of an atom? select all that apply. a.) compound b.) electron c.) neutron d.) molecule e.) photon f.) proton g.) element

What do we mean by the event horizon of a black hole?

Sally turns on her cellular telephone to speak to her friend who is located thousands of miles away. which of the following best describes how such a telephone is able to transmit and receive information? a. the cellular telephone transmits, receives, and encodes information using only sound waves. b. the cellular telephone transmits, receives, and encodes information using only electromagnetic waves. c. the cellular telephone transmits information by electromagnetic waves to a receiver which then encodes them and produces sound. d. the cellular telephone transmits information by sound waves to a receiver which then encodes them and produces electromagnetic waves.