Which describes the heliocentric model of the solar system? (1 point) A. a model in which Earth is at the center of the solar system

B. a model in which Venus is at the center of the solar system

C. a model in which Mars is at the center of the solar system

D. a model in which the Sun is at the center of the solar system

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?

Pls i will do pls imma diewhat forms white light? (4 points)a. combination of all wavelengths of ultraviolet light b. combination of all wavelengths of visible lightc. absorption of electromagnetic waves d. absorption of infrared rays