If the bright lines in the spectrum of oxygen are matched by lines in the dark-line spectrum of the sun, what does that indicate?.

Afixed resistor has the following color bands: orange, red, brown, gold. what is the rated resistance

Jasmine thinks that andrea is responsible for posting embarrassing pictures of her on the internet and sending them around the school. jasmine finds andrea before school and starts yelling at her about taking the pictures down. andrea pushes jasmine. what should jasmine do first?

Scientists observed a rock stratum with fossil. if mollusks evolved before arthropod, where will their fossils be found.