Which could be the factor that remains at the same phases of an experiment?
a: observations
b: science
c: scientific methods
d: technology
e: controlled variables

Which statement is best supported by the information in the chart? wave y is moving the fastest. wave x is moving the fastest. all of the waves are moving at the same speed. all of the waves have the same value of wavelengths per second.

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near the, would bea. 70dbb. 73 dbc. 105 dbd 140 db