Why are punnets square’s used to calculate the probability of genotypes and phenotypes of one child. In other words why is it inappropriate to say “two out of four of their children will have brown hair” Someone please help me

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?

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table