17.Why does our sun give off light? a. The sun redirects and focuses energy from other planets.
b. Nuclear fission in the sun’s core generates photons.
c. Nuclear fusion in the sun’s core generates photons.
d. As the sun spins, it loses light which travels towards us.

Supongamos que estás estudiando dos estrellas. ambas estrellas tienen la misma magnitud aparente, pero la estrella a tiene una magnitud absoluta mayor que la estrella b. ¿que puedes decir acerca de la distancia a la tierra de estas dos estrellas?

Mitosis is a type of cell division that produces cells that are identical to the parent cell. meiosis is a different type of cell division that produces cells that carry have a genetic material of the parent cell. based on the information provided how do the purpose of mitosis and meiosis differ

How far is the region from the equator or control climate